"Welcome to the birthplace of MIRCE Science, a theory of the motion of functionable systems through MIRCE Space used for planning actions and resources needed for doing expected work.Dr J. Knezevic, Founder, 1999

   

Jun 12, 2014

MIRCE Science observed actions


Category: General
Posted by: daneswood

21 September 2022 Falling sparks and debris forced United Airlines B777 returns

The Boeing 777-200 with registration N787UA was performing flight UA149 from Newark to Sao Paulo. However, while the aircraft was climbing out of Newark, the crew detected the sparks and debris started to fall from the hydraulic system. The pilots entered a holding pattern about 70 nautical miles Southwest of New York, dumped fuel and landed safely 90 minutes after departure. The Federal Aviation Administration (FAA) reported that United had failed to perform required inspections of the leading edge slats on many of its 777s. United grounded 25 of its Boeing 777s to comply with the FAA inspection requirements. United said Tuesday that it had already completed inspections for 10 of its Boeing 777-200 jets and has been working with the FAA to return the remaining jets to service. The aircraft maintenance team at United discovered the problem in an audit and reported it to the FAA. Following the grounding, about 18 flights, mostly long-haul international flights, were cancelled.

12 September 2022 Launch failure grounded Blue Origin's New Shepard rocket

Blue Origin's New Shepard spacecraft is a reusable vehicle designed to take people and cargo on brief trips to suborbital space. It consists of a first-stage booster and a capsule. On its 23rd overall mission ad the 17th to fly without any people onboard the failure occurred about 1 minute and 4 seconds into flight, when the vehicle was less than 30,000 feet (9,000 meters) above Earth. The vehicle's capsule successfully engaged its emergency abort system and ended up landing safely under parachutes, but the booster crashed hard back to Earth. The accident caused no injuries and no damage to public property, according to the U.S. Federal Aviation Administration (FAA), which licenses commercial space launches. Blue Origin is working to understand what caused the accident, and the FAA is overseeing the investigation. New Shepard won't fly again until that investigation is completed to the FAA's satisfaction. It was a startling moment, especially given New Shepard's impressive string of spaceflight success: The vehicle hadn't suffered a serious problem since its debut mission back in April 2015. And on that flight, everything worked except the booster landing.

7 September 2022 Leaky seal on Artemis 1 to be replaced at the launch pad

NASA attempted to launch the Artemis 1, new Space Launch System (SLS) megarocket to send an uncrewed Orion capsule to lunar orbit and back. On 3 September was aborted when it couldn't troubleshoot a leak of supercold liquid hydrogen (LH2) propellant in time for lift-off. The leak occurred at a "quick disconnect," an interface connecting the SLS core stage with a propellant line coming from the giant rocket's mobile launch tower. After analysing the issue for a few days, the Artemis 1 team has decided to replace the seal on the misbehaving quick disconnect, agency officials announced in an update on 6 September. This work will be done at Pad 39B at Kennedy Space Center (KSC) in Florida, where the Artemis 1 stack has been perched for the past three weeks. Performing the work at the pad requires technicians to set up an enclosure around the work area to protect the hardware from the weather and other environmental conditions but enables engineers to test the repair under cryogenic, or supercold, conditions. This will allow teams to gather as much data as possible to understand the cause of the issue. This was the second scrub for Artemis 1. The first, which occurred on Aug. 29, was spurred by a measurement indicating that one of the four engines on the SLS core stage wasn't cooling to the proper pre-launch temperature. The Artemis 1 team quickly concluded that the reading was caused by a faulty temperature sensor and decided to press ahead with a Saturday attempt.

7 September 2022 Astronauts' blood shows signs of DNA mutations due to spaceflight

Short-duration space shuttle missions may have put its astronauts at a higher risk for cancer, a new study concludes. Astronaut cancer risk needs careful monitoring, concludes a study that stored spaceflyer blood for 20 years. All fourteen astronauts in the study, from NASA's space shuttle program, had DNA mutations in blood-forming stem cells, as reported by a Nature Communications Biology study, 31 August. The mutations, though unusually high considering the astronauts' age, was below a key threshold of concern, however. While the study is unique for keeping astronaut blood around for so long, the results are not alarming. Rather, the researchers suggest that astronauts should be subject to periodic blood screening to keep an eye on possible mutations. Monitoring programs will nevertheless be crucial as NASA reaches for long-duration deep space missions through its Artemis program on the moon and later, human excursions to Mars, the new study team said in a statement.
The team decided to pursue the new study in light of "the growing interest in both commercial space-flights and deep space exploration, and the potential health risks of exposure to various harmful factors that are associated with repeated or long-duration exploration space missions. NASA recently changed its lifetime radiation requirements for astronauts that critics said were discriminating against women, who historically had lower limits than male astronauts. The researchers found a higher frequency of somatic mutations in the genes of the 14 astronauts considered in the study, relative to statistics for the population who has been to space. The space cohort flew between 1998 and 2001 on shuttle missions of an average of 12 days. Roughly 85 percent of the group was male, and six of the astronauts were on their first mission. Researchers collected whole blood samples from the astronauts twice, exactly 10 days before spaceflight and on the day of landing. White blood cells were collected once, three days after landing. The blood samples were then left untouched in a freezer for 20 years, chilling at minus –80 C. The somatic mutations seen in the genes was less than two percent, however. Those individuals who breach that threshold face more risk in developing cardiovascular disease and some forms of cancer. However, the presence of these mutations does not necessarily mean that the astronauts will develop cardiovascular disease or cancer, but there is the risk that, over time, this could happen through ongoing and prolonged exposure to the extreme environment of deep space, the lead author Dr. David Goukassian, added.

 3 September 2022 Airbus A320 Hits Motorcycle On Landing in Guinea

Flight TP1492 landed on runway 24 at Conakry’s Ahmed Sékou Touré International Airport at around 23:40. While the Airbus A320neo belonging to TAP Air Portugal aircraft was still on the runway, its right engine collided with a motorcycle that was crossing the runway at that time. Both riders on the motorcycle were unfortunately killed, and the driver is believed to have been identified as a security officer at the airport. While the aircraft’s engine suffered significant damage, there were no reported injuries among the passengers and crew onboard. The Civil Aviation Authority of Guinea (AGAC) will now commence an investigation into the incident, with the support of the airport’s safety and security department. Both TAP Air Portugal and the airport expressed their condolences to the families of those involved. The aircraft involved in the collision,, CS-TVI, was delivered to the airline in April 2021, making it 1.5 years old.

29 August 2022 Technical Issue Nixes First SLS Launch Attempt

In a test of the procedure ahead of when it would be needed for the actual engine firing, the bleed, or reverse flow, worked as intended with only three of the four core-stage RS-25 engines, prompting a round of troubleshooting. The bleed pressure within the Space launch System (SLS) hydrogen tank was increased and recycled and a flow valve closed in efforts to address the concern with the affected engine, but without success. Finally, the circulation of the liquid hydrogen used to thermally condition all four of the engines was channelled into the problem engine, No. 3, also unsuccessfully. The countdown went into an unplanned hold at the T-minus-40-min. mark to give the launch team time to assess options, but EDT Launch Director called a scrub. NASA had planned to launch the SLS, carrying an uncrewed Orion spacecraft, during a 2 hr. window that opened at 8:33 a.m. EDT. The next launch opportunity is at 12:48 p.m. EDT on Sept. 2, if the engine conditioning issue can be resolved in time. Early, the rocket’s core stage was filled with cryogenic liquid oxygen and liquid hydrogen, following resolution of a potential hydrogen leak in the tail service mast umbilical, located at the base of the core stage. The launch control team also assessed an apparent crack along a SLS core stage flange, a connection joint linking the liquid hydrogen and oxygen tanks where a line of frost had formed. Engineers concluded the crack was in the exterior insulating foam and the ice they could see had formed when the air around the crack was exposed to the cold temperatures on the exposed exterior of the tank Artemis I mission managers cleared the Kennedy Space Center launch team to begin propellant loading shortly before midnight, starting first with the preparations to begin the loading of liquid oxygen and then liquid hydrogen propellants. Fuelling, however, was delayed nearly an hour due to storms off the coast of the Florida launch site.

25 August 2022 Typhoon Expected To Disrupt Hong Kong Flights

Extreme winds and heavy rainfall are tormenting the South China Sea. Tropical storm Ma-on has already disrupted oceanic and air shipments across the region and it is rapidly moving towards Hong Kong , where is expected to make landfall near the city early morning. The storm could quickly develop into a typhoon with little notice. The Hong Kong Observatory issued a Category 8 typhoon warning this evening. This is the third-highest level weather alert that the city can give. The transportation companies are doing everything they can to continue operations without endangering their staff. The storm is expected to disrupt the transportation industry operating in and out of Hong Kong for the next 24 to 48 hours. International air and ocean shipping will be delayed along with many more localised transportation services.
Airports and seaports are taking the night off to prepare for the impending storm. Seaports across the region have stopped accepting shipment containers and are not filling any as the shipments companies do not expect to export any additional goods for the next one to three days. Air cargo companies are also not filling as many shipment containers as many flights are cancelled or delayed for the next one to two days.

23 August 2022 A Pilot Reportedly Fainted On A Jet2 Flight To Turkey

A pilot reportedly fainted in the cockpit on a Jet2 flight travelling from Birmingham, England (BHM) to Antalya, Turkey (AYT). The incident occurred during the cruise portion of the flight at 30,000 feet. The aircraft had just experienced moderate turbulence before the incident a pilot reportedly fainted. The second pilot declared an emergency and safely landed the plane in Thessaloniki, Greece. The pilot who fainted has been reported safe. The airline stated that a pilot was feeling unwell, so the co-pilot diverted as a precautionary measure. The flight crew was met by emergency medical personnel at the airport. All members of the flight crew and passengers onboard were reported safe, and the deviation was reported by the airline to be a precautionary measure taken by the pilots. A replacement flight crew was flown to Thessaloniki to continue the flight to Antalya. Passengers were delayed by over eight hours and were given meal vouchers while waiting at the airport. As the world grapples with a growing pilot shortage, the tolerable strain placed on pilots is being questioned. Pilots are required to work longer, more complicated hours around the globe. Airlines must stretch their pilots thin to keep operations flowing steadily. This has proven to be draining on pilots and increases the likelihood of delays and cancellations. Airlines, unions, and government agencies alike have been looking for ways to improve the lifestyle of pilots to promote healthier and more prepared flight crews.

22 August 2022 Smoke in Cockpit of B747-8 Declares Emergency and Diverts To Boston

Passengers on a Lufthansa Boeing 747-8 en route from Newark Liberty International Airport (EWR) to Frankfurt Airport (FRA) were in for an unexpected surprise, when t 50 minutes into the flight, the Boeing 747 executed a u-turn as it was approaching Yarmouth in Nova Scotia, Canada. The reason for that was the observed smoke in the aircraft's cockpit. Hence, due to a "technical irregularity" the crew declared an emergency to receive a prioritised landing at Boston Logan International Airport (BOS). The flight descended, landing in Boston around 35 minutes after the turn. The Massachusetts State Police saying that the flight crews donned oxygen masks. All passengers have normally disembarked. The aircraft involved was a nine-year-old Boeing 747-8 registered as D-ABYK. According to data from ch-aviation.com, the jet first flew on July 26th, 2013, and was delivered to the German flag carrier on August 13th of that year. As of April 30th, 2022, the aircraft had completed 37,289 flight hours (4.25 years) across 4,124 flight cycles.

15 August 2022: Pilots Miss Landing Because They Were Asleep

An Ethiopian Airlines B737 overflew the runway at Addis Ababa because the pilots had fallen asleep. The flight had left Khartoum, Sudan (KRT) and was en route to Addis Ababa (ADD), Ethiopia, when the pilots both fell asleep during the cruise portion of the flight. The autopilot followed the approach route to the airport but remained at flight level 370. Air Traffic Control attempted to reach the pilots multiple times with no success. Upon overflying the runway, the autopilot disconnected. This disconnect triggered the disconnect alarm, called a wailer. This woke the pilots. The pilots managed to return to the airport and land on Runway 25L safely. The aircraft landed roughly 25 minutes after overflying the runway. All passengers and crew members were safe. The airline has yet to make any official comments regarding the incident.

6 August 2022 Failed Sensor prevents India to put satellites in right orbit in debut launch

The Small Satellite Launch Vehicle (SSLV) lifted off from Satish Dhawan Space Centre on India's southeastern coast on Saturday at 11:48 p.m. EDT with two satellites onboard. The rocket's three solid-fuelled stages performed well, but its fourth and final stage, a liquid-fuelled "velocity trimming module" (VTM), hit a snag: Indian Space Research Organisation (ISRO) officials reported a loss of data from the rocket and, just over five hours after lift-off. Instead of placing the satellites in a circular orbit 356 km above Earth, the rocket left them in an orbit that ranged from 356 km to as close as 76 km. That orbit was not stable, and the satellites have already come down, and they are not usable. ISRO officials stated that a sensor failure that was not detected in time to switch to a "salvage action" caused the orbit issue. An investigation into the failure is planned. However, "every other new element that has been incorporated in this rocket performed very well." The main payload was EOS-02, a 135 kg experimental Earth-observation satellite that offers advanced optical remote sensing operating in infrared band with high spatial resolution. The second satellite was 8 kg cube-sat called AzaadiSAT, containing 75 different payloads, which were built by female students across India to perform a variety of "femto-experiments." The payloads include a UHF-VHF transponder working in ham radio frequency to enable voice and data transmission for amateur radio operators, a solid state PIN diode-based radiation counter to measure the ionising radiation in its orbit, a long-range transponder and a selfie camera.

6 August 2022 Lightning Strikes 2 IndiGo Engineers During ATR Check

According to IndiGo airlines “There was a lightening strike observed on an IndiGo ATR-72 parked at Nagpur airport. Two of our technical staff attending the flight were affected. They were immediately given medical attention. They are both stable and under medical care.” It took place at around 17:20 hours local time when the engineers were completing checks on an inbound Ahemdabad (AMD)-Nagpur (NAG) flight. The airport saw heavy rains on the day, with the pair using walkie-talkies to communicate with the captain of the IndiGo flight (6E 7197). While details are currently unclear, the engineers seem to have been in contact with the plane when lightning struck it, resulting in them receiving an extreme shock as well. Doctors from the hospital where the engineers are currently under observation said that one engineer fell unconscious following the strike while the second one is currently still feeling weakness in his right hand. Both are said to be stable at this time. Modern airliners are built to sustain extreme weather events and include several redundancies. For lightning, the metal fuselage of the aircraft conducts the electricity along its body, protecting the internal section of the plane. The energy usually exits from the tip of the tail or wings at the extremity of the aircraft. However, a lightning strike on the ground can mean those in contact with the plane are at risk of a severe and potentially fatal shock. . In 2020, a Vietnam Airlines employee died after lightning struck the wing of an aircraft he was working on.

2 August 2022 Belly Landing of F16y Shows Landing Gear Issues Persisting

During the flight, the pilot of A U.S. Air Force, received cockpit indications including an illumination of the anti-skid light, prompting him to cancel the training flight and call for his wingman to inspect the F-16 in the air. For about 1 hr. and 45 min., with the aircraft in the air, security forces personnel on the ground inspected the airfield and found the separated wheel. On the recommendation of Aviano supervisors and a flight safety engineer, the pilot landed gear up. The landing damaged the F-16’s ventral fins and electronic countermeasures pod, causing $6.1 million in damage. The investigators found that the failed bearing caused excessive heat and friction, softening and deforming the bearing cone on the wheel of the left main landing gear. As the wheel spun, it caused friction and eventually sheared a locking tab on the wheel nut, loosening it during takeoff. Landing gear issues have troubled the F-16 fleet, with collapses dating back to 1997, according to a report on a similar incident in December 2019 at Kunsan Air Base, South Korea. During that incident, the F-16’s right main landing gear’s downlock actuator failed, causing it to collapse. That investigation says that in March 2019, the Air Force issued an order to address landing gear issues. The order, titled “Replacement of Main Landing Gear Downlock Actuators and Support Brackets and Hardware on all USAF F-16C/D Blocks 40/42/50/52 Aircraft,” mandated the removal and replacement of main landing gear hardware with a deadline of March 2—the same date as the Aviano incident. The report did not say if the Aviano F-16 had its landing gear hardware replaced. F-16s have continued to have other landing gear issues recently, including a Republic of China Air Force F-16V’s front landing gear collapsing on landing at Joint Base Pear Harbor-Hickam, Hawaii, in June. The front landing gear on two F-16s from the South Dakota Air National Guard also collapsed while landing in two separate incidents within three weeks in May.

 2 August 2022 B737 Lands In Amsterdam With Open Cargo Door

KLM's B737-700, registration PH-BGT, had a scheduled flight from Leeds to Amsterdam. It took off at 11:56, cruised at 27,000 feet and landed safely 50 minutes later. Throughout the flight, there was no report that anything unexpected was happening. Even as the flight landed routinely everything seemed to be as usual. Then a video surfacing on social media showed how the forward cargo door on the aircraft was slightly inwards while it was still taxiing to its gate, an evident indication that the cargo door was open when it should've been closed. Although aircraft landed without much a hitch to passengers and baggage, the opening of the forward cargo door still caused concern. Upon initial checks, it was found that the hatch did not open on the ground, meaning it could have only been opened during the flight. Though most of the flight covered the North Sea, the door most probably latched open when the aircraft descended from 27,000 feet upon approach. When the cabin was pressurised at cruising altitude, the mechanisms could remain engaged, and the door most likely remained closed. However, the mechanisms would disengage when the cabin was depressurising, allowing the door to open. But if the cargo door opened mid-flight, how were all baggage still intact and accounted for? The answer could lie in the subtle disadvantageous design of the Boeing 737s' cargo doors. Unlike other aircraft, such as the Airbus A320, the cargo doors on the Boeing 737s open inwards instead of out, which takes up quite a substantial amount of space in the hold during loading. However, if the door was designed to open outward like other aircraft, passengers onboard might never see their baggage again.

 31 July 2022: Pressurisation Problem causes Airbus A330 Returns To Heathrow

Virgin Atlantic flight VS362 took off from Manchester Airport (MAN) at around 11:15 am UTC, bound for the capital of Pakistan. The flight was operated by an Airbus A330-300 aircraft registered as G-VUFO. The climb phase of the flight was uneventful, and the A330 was cruising at 37,000 ft. while flying over Amsterdam when a cabin pressurisation issue was indicated. The pilots declared an emergency and eventually safely landed at London’s Heathrow Airport (LHR), with no reported injuries among passengers or crew members. The airline also said that oxygen masks for passengers were not deployed. Data from flightradar24.com shows the A330-300 aircraft briefly squawked the 7700 emergency code while making a rapid descent to 10,000 ft. The descent from 37,000 to 10,000 ft. was completed in just 10 minutes, with the descent rate reaching nearly 5,000 ft. per minute. At the same time, airspeed also had to be dropped from 540 knots to around half that. After descending to FL 100, the aircraft hovered over Essen in Germany for a good 25 minutes before turning back. Most likely, the pilots used this time to go through emergency procedures and checklists. G-VUFO diverted to LHR and touched down safely at 13:30 UTC. Virgin Atlantic has confirmed to Simple Flying that all passengers on the flight have now reached their final destination, thanks to alternate arrangements made by the airline.

29 July 2022 FAA Approves Boeing 787 Inspection, Delivery Restart Plan

Boeing has been working to identify production-quality issues on its 787s for nearly three years. Most of the issues focus on how parts or major subassemblies fit together. Every aircraft built has required at least some re-work to bring it up to Boeing’s production standard, though none of the issues pose a safety-of-flight risk to in-service airframes. Since June 2021 only 14 B787 were delivered. Production has slowed to about one aircraft per month while the company focuses on finalising the re-delivery plans and conducting re-work on its stored inventory. The situation is going to change as the FAA has signed off on Boeing’s plan to correct 787 production problems and re-start deliveries. Months in the works, Boeing’s broad plan addresses inspection and repair procedures that cover myriad issues uncovered by the company on 120 B787s awaiting delivery. It will drive airframe-specific compliance plans that the company will use to show each aircraft conforms with Boeing’s specifications. Once an airframe’s rework plan is completed, the FAA will validate Boeing’s work via pre-delivery inspections and issue an airworthiness certificate.

 29 July 2022 F-35s Join Grounded as Martin Baker Ejection Seat Could be Faulty

In mid-July, Martin-Baker informed operators of a defect that affects a certain range of serial numbers for cartridge actuation devices, which ignite to propel the seat out of the aircraft and deploy the parachute. The defect affected multiple seats, including the Mk. 14, SJU-5/6, Mk. 16 and the F-35 fleet’s US16. In response, the services published Time Critical Technical Directives in mid-July, ordering inspections of cartridges with the affected serial numbers. Cartridges that fail inspections can be replaced by maintainers at the squadron level, which avoids the need for an unscheduled depot visit. Although the US16 seat is affected, the Air Force said on July 28 there were no plans to ground the F-35A fleet due to the problem. The US16 has dual-redundant initiators for the cartridges, which the Air Force said mitigated the safety risk. The Air Force also grounded portions of its Northrop T-38 and Beechcraft T-6A trainer fleets. However, the U.S. Air Force grounded most Lockheed Martin F-35As to inspect a component in the stealthy fighter’s ejection seats that manufacturer Martin-Baker said could be faulty.

26 July 2022 Engine Fire Causes Aborted Take off on A321

The Airbus A321-200, with registration N332DN, was accelerating for takeoff as flight DL1057 from Denver’s runway 08 bound to Atlanta, with 197 passengers on board. However, a bird was ingested by the left-hand engine, resulting in an engine fire. Consequently, the pilots rejected the takeoff at high speed (about 157 knots over ground), vacated the runway via a high-speed turnoff and stopped clear of the runway. The A321 blew the right main gear tires and it was towed to the apron about two hours later. Eyewitnesses reported that they noticed smoke and flames coming from the aircraft and emergency services responded quickly. The engine fire was photographed by a passenger and posted on the internet. Although the engine caught fire following the bird strike, the passengers and crew members on board evacuated the aircraft normally without using the slides. No one was injured and the passengers reached Atlanta in another aircraft.

21 July 2022 SpaceX aborts launch of Falcon 9 rocket 46 seconds before lift-off with 46 Starlink satellites

The Falcon 9 rocket, which has flown three times before, was set to launch from Vandenberg Space Force Base in California. The mission is carrying 46 of the company's Starlink internet satellites and would have marked SpaceX's 32nd launch of this year, surpassing the company's 2021 record of 31 launches. It was a grey day at the company's California launch site; the broadcast showed a launch pad covered in fog that completely obscured the rocket as rain dotted the camera lens. However, just 46 seconds away from launch mission controllers announced the abort, saying "There are a thousand ways a launch can go wrong, and only one way that it can go right. Given that, we are overly cautious on the ground, and if the team or the vehicle sees anything that looks even slightly off, they will stop the countdown as we saw today. The vehicle and the payload are in good health and the team gave it their best effort to recycle within the window, but not in the cards for today." Following the abort, SpaceX announced that the launch has been rescheduled for tomorrow June 22 at 1:39 p.m. EDT. The company has not offered any details about the cause of the abort. SpaceX has launched over 2,800 Starlink satellites to date, 2,115 of which are believed to be operational. The satellites are designed to provide global high-speed internet coverage, particularly in remote or underdeveloped locations.

18 July 2022 Storm damage grounded Flying telescope SOFIA

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a telescope designed to observe the infrared light emitted by the universe. To avoid obstruction by Earth's atmosphere, the telescope is mounted on a modified Boeing 747 aircraft, which can take it to an altitude of up to 12,000 m. However, it is grounded after a storm that damaged the front of the carrier aircraft. The damage was caused by high winds that moved a set of stairs placed outside the aircraft; that movement damaged both the stairs and the front of the aircraft. Although no personnel were injured, science flights must wait for a new set of stairs to arrive, as well as repairs to the aircraft. While teams are assessing the damage and a repair is performed SOFIA's observations will have to be postponed. Since June the telescope is in Christchurch for a final Southern Hemisphere mission, which included more than 30 flights to map the Milky Way galaxy's magnetic field and to study the interaction of stars with their local environment. This damage comes in SOFIA's final months of planned mission.

18 July 2022 Satellite dodges space debris as it scrambles against space weather

A European satellite that has been scrambling to escape premature death in Earth's atmosphere due to bad space weather has narrowly avoided a collision with a random piece of space junk. The satellite, part of the constellation Swarm, which monitors Earth's magnetic field, has been climbing to a higher altitude after it experienced increased drag due to changes in the density of the upper layers of Earth's atmosphere that occurred in response to solar activity. The manoeuvre, which intended to raise the satellite's altitude by 45 km over a 10-week period, had to be suspended after a piece of space junk raised an alarm at mission control. This incident highlights the precarious situation in Earth orbit, as the problem of space debris has been getting worse and worse, with hundreds of thousands of fragments large enough to kill a satellite currently known to be hurtling around the planet. At the same time the sun awakens to a period of more intense activity, producing more sunspots, flares and coronal mass ejections than it has done in years, satellite operators face a double whammy. With an increase in the density of the upper atmosphere, satellites have to plod through the thickening gas as if they were flying against wind. Satellite operators therefore need to use on-board propulsion to prevent the satellites from spiralling back down to Earth. On top of that, experts predict that these same air density changes will lead to a temporary increase in the amount of debris fragments in low Earth orbit, as those fragments face the same increased drag as the satellites. Unlike the satellites, these fragments are completely out of control.

17 July 2022 International Carriers Made 3 Emergency Landings on Indian Airports by Within 48 Hours

As a scheduled Air Arabia flight (G9 426) from Sharjah reported a hydraulic failure of their A321, a full emergency was declared at Cochin International Airport (COK) in the South Indian state of Kerala. Flight G9 426 made a successful landing in Kochi safely, causing diversion of two flights. The same day, a SriLankan Airlines flight between Colombo and Chennai also declared an emergency as it neared its destination. Flight UL 121 also faced hydraulic issues, prompting Chennai International Airport (MAA) to declare a full emergency. Livemint reports that crash tenders were positioned by the side of the runway as per protocol, the Airbus A330 airplane did not need any of those. The third incident took place the next day, when an Ethiopian Airlines flight from Addis Ababa to Bangkok made an emergency landing at Kolkata's Netaji Subhas Chandra Bose International Airport (CCU) following a pressurization issue on A330. After a successful landing, the aircraft was towed to the parking bay for repair. India's aviation regulator, the DGCA, will investigate all three incidents.

17 July 2022 Micrometeoroid strikes damaged James Webb Space Telescope

Micrometeoroids are a known danger of space operations, and facing them is by no means new to scientists; the International Space Station and the Hubble Space Telescope are among long-running programs that are still operational despite occasional space rock strikes. However, Webb's orbit at Lagrange Point 2 about 1.5 million kilometres away from the Earth may change the risk profile considerably. Webb engineers first detected deformations on the primary mirror during the commissioning period during the alignment (or wavefront sensing) phase, which put the 18 segments of the hexagonal mirror into the best position to capture light. A micrometeoroid struck the James Webb Space Telescope between May 22 and 24, impacting one of the observatory's 18 hexagonal golden mirrors. These first six strikes met pre-launch expectations of rate as they came in at a rate of once per month, the report stated. Moreover, some of the resulting deformations are correctable through mirror realignments. But it's the magnitude of one of these six strikes that caused more concern, the paper noted, as it caused a significant blemish to a segment known as C3. The strike in late May "caused significant un-correctable change in the overall figure of that segment," the report stated. In this case, however, the overall impact to the mission is small "because only a small portion of the telescope area was affected." Seventeen mirror segments remain unblemished and engineers were able to realign Webb's segments to account for most of the damage.

11 July 2022 Repair Issue Prompts 787 Fire Shutoff Switch Swap Order by FAA

In May 2022 Boeing sent to operators a bulletin that is linked to a 2021 directive that flags engine fire shutoff switches (EFSS) located on the flight deck, for replacing them, or swapping entire panels, on most 787s with a new, modified design. A specific subset of parts re-worked as part of efforts to comply with the 2021 mandate have the FOD problem. As the assemblies are rotables and can be installed in any 787, the new directive asks operators to verify that none of the panels they have on hand, either installed on aircraft or available as spares, contain parts from the identified subset or have been validated post-modification. Boeing 787 operators must check engine fire shutoff components to ensure the parts function as intended following Boeing’s discovery of issues linked to a supplier’s “re-work” of the parts, a draft FAA airworthiness directive said.

10 July 2022 Landing Gear Catches Fire in Atlanta with Passengers On Board of Spirit Airlines

A Spirit Airlines flight from Tampa to Atlanta suffered a scare after its landing gear caught fire upon landing. As the Airbus A320-200 touched down in Atlanta, one of its brakes overheated, creating flashes of fire and smoke. Emergency services were quickly on the scene and put the fire out before the aircraft was towed to its gate. All passengers disembarked safely and there were no reported injuries.
There were fortunately no reported injuries and passengers deplaned safely at the gate. Company statement stated, "Spirit Flight 383 from Tampa to Atlanta landed safely in Atlanta International Airport and upon landing one of the brakes overheated. The aircraft was towed to the gate where Guests safely deplaned without any injuries. Thank you to the Atlanta first responders for immediately meeting the aircraft. The plane will be temporarily removed from service for maintenance." The affected aircraft is a three-year-old Airbus A320-200 (registration: N693NK) that joined the Spirit fleet in December 2018. The aircraft seats 182 passengers - 8 in business class and 174 in economy.

7 July 2022 Minotaur rocket explodes 11 sec after launching on test mission for US military

A Minotaur II+ rocket exploded just after launching on a test mission from California's Vandenberg Space Force Base. The explosion occurred about 11 seconds after lift-off. No injuries were reported, and the debris was contained to the immediate vicinity of the launch pad. The test launch was intended to demonstrate preliminary design concepts and relevant technologies in operationally realistic environments, according to Air Force Nuclear Weapons Center officials.

7 July 2022 Trash bag jettisoned from ISS in waste-management first

International Space Station (ISS), until now, disposed unneeded items by piling trash into a cargo ship bound to burn up in the atmosphere, ejecting retired hardware like the Russian Pirs module in 2021, or (on rare occasions) asking astronauts to hand-dispose of small items during spacewalks. The first garbage ejection, roughly 78 kg of waste was ejected from ISS in a specially designed waste container, based upon the Nanoracks CubeSat and SmallSat deployers, which regularly deploy small satellites from the ISS. A maximum capacity of the ejection system is 272 kg. The trash bag contained used foam, packing materials, cargo transfer bags, office supplies, crew hygiene products and crew clothing. This is the first use of an airlock trash bag ejection system on the ISS, but this novel trash disposal system on the ISS is not new to spaceflight overall. Trash bags were regularly jettisoned from the Soviet Salyut space stations in the 1970s and 1980s. The last time such a jettison happened was from the Soviet-Russian space station Mir in September 1996. That set of trash re-entered the atmosphere naturally in May 1998. Bishop Airlock, the world's first commercial airlock, was attached to the exterior of the ISS on 23rd December 2020. The 907 kg facility launched to the station during the SpaceX CRS-2 resupply mission on 6th December 2020.

5 July 2022 NASA's tiny CAPSTONE probe goes silent on its way to the moon

CAPSTONE (short for "Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment") launched atop a Rocket Lab Electron booster on June 28 and spent nearly a week in Earth orbit, spiralling farther and farther away from our planet via occasional Photon engine burns. The mission notched two huge milestones yesterday: The Photon fired its engine for a final time, accelerating CAPSTONE out of Earth orbit and on a path toward the moon. Shortly thereafter, the microwave-oven-sized cubesat successfully separated from the spacecraft bus and began flying freely.
However, the 25 kg probe ceased communicating with its handlers shortly after it deployed successfully from Rocket Lab's Photon spacecraft bus and began its long trek to the moon. The spacecraft team currently is working to understand the cause and re-establish contact. The team has good trajectory data for the spacecraft based on the first full and second partial ground station pass with the Deep Space Network. If needed, the mission has enough fuel to delay the initial post-separation trajectory correction manoeuvre for several days. Should all goes according to plan, CAPSTONE will take a long, looping route to the moon, finally slipping into a near rectilinear halo orbit around Earth's natural satellite on Nov. 13. The mission's main goal is to test the stability of this highly elliptical orbit, which NASA has selected for its Gateway space station, a key piece of the agency's Artemis program of lunar exploration. The CAPSTONE team will have to solve the communication problem to turn this vision into reality, however. That team is led by Colorado-based company Advanced Space, which operates the mission under a $20 million contract that NASA awarded in 2019.

1 July 2022 Large Hole In Fairing on Emirates Airbus A380 when Landing in Brisbane

Flight EK430 took off from Dubai International Airport at 03:11 GST before a loud bang was allegedly heard soon after takeoff. On approach to Brisbane, the crew advised air traffic control (ATC) that they suspected a tire was blown and requested emergency services to be on standby. The A380 then landed on the airport's runway 19R at 22:44 AEST. After the 13.5-hour flight, the aircraft was towed to the apron and a notable hole could be seen in the left-hand wing root fairing at the underside of the widebody's fuselage. The airline replied with the following statement: "Our flight EK430 flying from Dubai to Brisbane on 1 July experienced a technical fault. One of the aircraft’s 22 tyres ruptured during cruise, causing damage to a small portion of the aerodynamic fairing, which is an outer panel or the skin of the aircraft. At no point did it have any impact on the fuselage, frame or structure of the aircraft. The aircraft landed safely in Brisbane and all passengers disembarked as scheduled. The fairing has been completely replaced, checked and cleared by engineers, Airbus and all relevant authorities. The safety of our passengers and crew has always been our top priority." The aircraft in question is A6-EVK and it is just over three years old, arriving at Emirates' facilities in December 2019.

28 June 2022 Nose Gear Trouble Landing In Hamburg for SAS ATR-72

A SAS flight, SK-649 from Copenhagen (CPH) to Hamburg (HAM), experienced nose gear trouble upon arrival in Germany after its nose landing gear rotated 90 degrees. According to The Aviation Herald, as the plane slowed during the rollout phase, its nose gear turned 90 degrees, causing its nose tires to burst. The plane came to a halt on the runway as emergency services attended the scene. It isn't clear what caused the nose gear to twist, although a front-heavy landing or a pre-existing structural weakness could be to blame. The nose landing gear incident fortunately caused no injuries to any passengers or crew onboard. Passengers disembarked the aircraft onto the runway and were bussed to the airport terminal. Simple Flying has reported on similar incidents in the past, such as a Batik Air Airbus A320 landing with its nose gear turned 90 degrees and an Air Algerie ATR-72 which suffered a nose gear collapse. Another incident involved an Austral Lineas Aeras ERJ190 which lost a nose wheel after landing. The plane landed without incident and its crew only became aware of the incident after ground staff noticed its missing wheel.

 26 June 2022 US Congress Eyes Another Boeing Audit After Multiple 737 MAX Incidents

US plane builder Boeing faces further US Government scrutiny with Congress reportedly preparing to request an audit of Boeing's production oversight following some 60 in-flight problems, including six emergencies, involving the 737 MAX in the 12 months since the FAA cleared the plane to fly again. According to the US National Transportation Safety Bureau (NTSB) the US Congress has requested the Inspector General's Office of the Department of Transportation (DOT) undertake the audit. On 22 occasions, the aircraft's flight control system failed, 42 incidents involved equipment malfunctions, and on at least 40 occasions, pilots chose not to fly the MAXs until identified issues were fixed. That's in addition to the six in-flight emergencies declared in the US since the MAX resumed flying. They include a United Airlines pilot declaring a mayday when the plane's system controlling the pitch and altitude malfunctioned, and both autopilot functions on an American Airlines MAX shutting down soon after takeoff. One Alaskan Airlines MAX was grounded seven times over five months owing to problems with its navigation and communication systems. Boeing points out that since resuming flying, the 737 MAX has flown over 1.5 million hours across 580,000 revenue flights, and the number of incidents involving the aircraft remains low.

24 June 2022 Wild solar weather is causing satellites to plummet from orbit

In late 2021, operators of the European Space Agency's (ESA) Swarm constellation noticed something worrying: The satellites, which measure the magnetic field around Earth, started sinking toward the atmosphere at an unusually fast rate, up to 10 times faster than before. The change coincided with the onset of the new solar cycle, and experts think it might be the beginning of some difficult years for spacecraft orbiting our planet. According to ESA's Swarm mission manager, "In the last five, six years, the satellites were sinking about 2.5 km a year, but since December last year, they have been virtually diving. The sink rate between December and April has been 20 km per year." Satellites orbiting close to Earth always face the drag of the residual atmosphere, which gradually slows the spacecraft and eventually makes them fall back to the planet. This atmospheric drag forces the International Space Station's controllers to perform regular "reboost" manoeuvres to maintain the station's orbit of 400 km above Earth. This drag also helps clean up the near-Earth environment from space junk. Scientists know that the intensity of this drag depends on solar activity, the amount of solar wind spewed by the sun, which varies depending on the 11-year solar cycle. The last cycle, ended in December 2019, was rather sleepy, with a below-average number of monthly sunspots and a prolonged minimum of barely any activity. However, since last autumn, the star has been waking up, spewing more and more solar wind and generating sunspots, solar flares and coronal mass ejections at a growing rate, causing the Earth's upper atmosphere to feel the effects. There is a lot of complex physics that is not fully understand in respect to the upper layers of the atmosphere where it interacts with the solar wind and that this interaction causes an up-welling of the atmosphere. Thus, causing the denser air to shifts upwards to higher altitudes. Denser air means higher drag for the satellites. Even though this density is still incredibly low 400 km above Earth, the increase caused by the up-welling atmosphere is enough to virtually send some of the low-orbiting satellites plummeting. The Swarm constellation, launched in 2013, consists of three satellites, two of which orbit Earth at an altitude of 430 km, about 30 km above the ISS. The third Swarm satellite circles the planet somewhat higher, about 515 km above ground. The two lower-orbiting spacecraft were hit more by the sun's acting out than the higher satellite was. The situation with the lower two got so precarious that by May, operators had to start raising the satellites' altitude using onboard propulsion to save them. ESA's Swarm satellites are not the only spacecraft struggling with worsening space weather. In February, SpaceX lost 40 brand-new Starlink satellites that were hit by a solar storm just after launch.

19 June 2022 SpiceJet Boeing 737 Engine Catches Fire After Bird Strike

Around 12:10 local time, a Boeing 737 operated by SpiceJet made a successful emergency landing in Patna, India. The flight carrying 185 passengers was bound for Delhi. During the takeoff procedure, what has been confirmed to be a bird strike, occurred in the left engine upon rotation. Sparks were noticed coming from the left engine by both passengers and cabin crew. The aircraft continued its climb to a safe circling altitude as prescribed. The pilots reacted properly by shutting down the left engine to avoid further damage and risk. Flying on one engine the flight crew managed to gain sufficient altitude to circle back around and execute a safe single-engine landing. According to SpiceJet, "Cockpit crew of Patna-Delhi SpiceJet flight after take-off during rotation suspected bird hit on engine no. 1. As a precautionary measure, the flight captain shut down the affected engine and returned to Patna. Post-flight inspection shows bird hit with three fan blades damaged," Every aircraft with a power plant (engine) shares a close affiliation with the said power plant. If an engine starts running rough, which this one was, it will cause the entire aircraft to run rough. By shutting down engine number one, the pilots managed to starve the engine of both fuel and electricity rendering a continued fire impossible. Engines power a device known as an alternator. This alternator produces electricity which is what powers aircraft electronics. Everything from flight instruments to interior lighting receives power from these alternators in-flight. When one engine is shut down on a twin-engine aircraft, such as a Boeing 737. It is left with only one generator of electricity. For this reason, it is standard procedure for the flight crew to shut off all items that drain electricity that is not essential to the flight.

 17 June 2022 ITA Airways Airbus A330 Hits Air France Boeing 777 And Takes Off

An ITA Airways jet was about to begin flight AZ611 from New York to Rome Fiumicino. The aircraft was an Airbus A330-200 registered EI-EJL, which is at present roughly 10 years old. Taxiing towards the runway for departure, the jet clipped an Air France Boeing 777-200, registered F-GSPQ, which had arrived from Paris CDG. While the crew of the ITA Airways A330 was completely oblivious to a collision, the Air France jet was well-aware of what had happened. Reacting quickly, the 777's crew urged ATC to keep the ITA aircraft on the ground. "This is Air France 008, we are on stand nine and there was an Alitalia passing behind us that hit our aircraft. It's so you can tell them not to take off", reported Air France pilot. However, by the time the situation was understood by ATC, the A330 was already in the air and on its way across the Atlantic. ATC contacted the ITA Airways jet and asked about the incident, but the crew denied that it had been involved in any kind of incident while taxiing towards take-off. The following conversation took place between air traffic control and the ITA Airways jet: ATC: "Another aircraft on the ground currently, Air France, said you hit them or something of that nature while you were taxiing. Did you experience any damage to the aircraft?" ITA Airways Pilot: "Negative, sir." The aircraft continued flying to Rome after the incident. Damage discovered upon landing in Rome. While the ITA Airways crew may have denied that any collision occurred (and genuinely believed this to be the case), it would ultimately prove to be false. According to reporting from ABC News, upon landing in Rome, wing damage was discovered on the A330. Details of the specific damage and its severity were not disclosed. However, we do know that the Air France jet is still parked at New York JFK. At the time of this article's publication, over eight days have passed. This length of time could indicate severe damage to the 777. As for the ITA A330, the aircraft touched down in Rome on June 18th and was on the ground for roughly two days. Seemingly an "easy fix," the jet's next service would be a flight to Tel Aviv, with subsequent flights taking place almost every day since.

16 June 2022 ISS dodges orbital debris from Russian anti-satellite test

Debris from the Soviet-era Cosmos 1408 satellite destroyed by Russia in Nov. 2021 forced the avoidance manoeuvre. A piece of space junk from a Russian anti-satellite weapons test forced the International Space Station to manoeuvre to avoid the orbital debris. Russia's space agency Roscosmos used an uncrewed Progress 81 cargo ship docked at the International Space Station to move the orbiting lab clear of a piece of space debris from the Russian satellite Cosmos 1408, sharing video of the activity on the social media service Telegram. Russia destroyed the defunct Soviet-era satellite in a November 2021 anti-satellite missile test. "I confirm that at 22.03 Moscow time, the engines of the Russian Progress MS-20 transport cargo ship carried out an unscheduled manoeuvre to avoid a dangerous approach of the International Space Station with a fragment of the Kosmos-1408 spacecraft," Roscosmos chief Dmitry Rogozin wrote on Telegram, according to a Google translation, using Roscosmos' designation for Progress 81. The Progress 81 cargo ship fired its thrusters for 4 minutes and 34 seconds to move the massive space station away from the trajectory of the fragment of Cosmos-1408 and raise the station's orbit slightly. "The crew was never in any danger and the manoeuvre had no impact on station operations," NASA officials wrote in an update. "Without the manoeuvre, it was predicted that the fragment could have passed within around a half mile from the station." On Nov. 15, 2021, the satellite (which was no longer functional) was intentionally destroyed by Russia in an anti-satellite missile test that created an estimated 1,500 pieces of orbital debris. Astronauts on the space station were forced to take shelter on Nov. 15 due to concerns over that debris, which could pose a hazard to the space station and other spacecraft for years to come, experts have said.

12 June 2022 McDonnell Douglas MD82 Catches Fire After Landing At Miami Airport

Red Air Flight 203 departed Santo Domingo at approximately 15:00 and performed an uneventful approach to landing at Miami airport. After touching down on Runway 9, the MD-82 veered to the left and skidded into the grass area that separates Runway 9 from the intersecting Runway 12-30. The aircraft’s left wing impacted an airport antenna structure, including a small building near it. The structure impacted the jet’s right wing at which point a fire erupted. All 140 passengers and 11 crewmembers were safely evacuated, but there are reports of some minor injuries at this time. Red Air is a Dominican Republic-based airline that operates a fleet of McDonnell Douglas aircraft, consisting of three MD-82s and one MD-81. The aircraft involved in the accident was an MD-82 with registration of HI1064. It was previously operated by Venezuelan-based Laser Air. The airline has only four aircraft in its fleet, all from the MD family. One is an MD-81, while the other three are MD-82s. The average age of the fleet is just over 30 years. The aircraft involved in the incident had been delivered new to American Airlines in December 1990, before moving to Laser Airlines in 2017. It was registered to Red Air in June last year.

10 June 2022 Micrometeoroid hits James Webb Space Telescope just months into flight

The James Webb Space Telescope, was launched on Dec. 25, 2021. Today, NASA revealed that the observatory has experienced its first few impacts from tiny pieces of space debris called micrometeoroids. As Webb's mirrors ar exposed to space it is expected that occasional micrometeoroid impacts would gracefully degrade telescope performance over time. Since launch, there were four smaller measurable micrometeoroid strikes that were consistent with expectations, and this one more recently that is larger than our degradation predictions assumed. The most serious of the impacts occurred between May 23 and May 25 and affected the C3 segment of the 18-piece gold-plated hexagonal primary mirror. All spacecraft are expected to experience and designed to withstand micrometeoroid impacts, and JWST is no different. The observatory's engineers even subjected mirror samples to real impacts to understand how such events might affect the mission's science. However, the recent impact was larger than those that mission personnel had modeled or could test on the ground, according to the statement. "We always knew that Webb would have to weather the space environment, which includes harsh ultraviolet light and charged particles from the sun, cosmic rays from exotic sources in the galaxy, and occasional strikes by micrometeoroids within our solar system," Paul Geithner, technical deputy project manager at NASA Goddard, said in the statement. "We designed and built Webb with performance margin, optical, thermal, electrical, mechanical, to ensure it can perform its ambitious science mission even after many years in space." Some micrometeoroid impacts can be predicted, officials wrote. For example, when the spacecraft is set to fly through known meteor showers, personnel can maneuver JWST's optical systems into safety for these events. However, the recent impact was not part of such a meteor shower and the statement classified it as "an unavoidable chance event." As the JWST team continues to evaluate the impact, NASA is focused on better understanding both the particular event and the environment that the observatory will experience throughout its mission. The telescope is orbiting what scientists call the Earth-sun Lagrange point 2, located nearly 1 million miles (1.5 million kilometers) away from Earth in the direction opposite the sun.

8 June 2022 Australian Safety Board Report Shows Importance Of Clear Instructions

The September 2021 Melbourne-Los Angeles flight, which carried only cargo, took place after the B787-9, VH-CNJ, sat for about 40 hr. following its previous flight, an Australian Transport Safety Board (ATSB) report found. Qantas followed its “normal” parking procedures, adhering to Boeing’s recommendations for parking aircraft for seven or fewer days. Among the recommended tasks: covering all 14 static ports, including the four fan cowl ports, two of which are located along the bottom of the fan cowl on the front nacelle of each engine. A Qantas engineer carried out the procedures using an airline-specific aircraft-parking job card. The job card referenced the B787-9 aircraft maintenance manual (AMM), which identified the locations of all ports. The card included Boeing’s instruction to tape down the bright orange “remove before flight” barricade, or streamer, tape near the fan cowl port to prevent strong winds from blowing it off. The engineer followed the card but did not have access to a lift, so two ports on the tail were not covered. 9 hours later, a second engineer was tasked with preparing the aircraft for its flight to Los Angeles, scheduled for the following morning. The applicable job card “included the tasks ‘remove all barricade tape and adhesive tape from all of the static ports’ and ‘remove the static ports covered tag,’” the ATSB found. “The AMM procedure for static port cover removal was not referenced” on the card, the board stated. The second engineer saw the logbook note about the tail ports being left uncovered and visually verified their status. “This was to ensure the ports had not been subsequently covered but inadvertently not entered in the technical log,” the ATSB said. The engineer did not check the engine fan cowl ports. Preparation for dispatch the following day included a third engineer’s sign-off that all maintenance tasks were done. The procedure did not require visual inspection of the aircraft. A second officer (SO) assigned to the flight conducted a walk-around, following the flight manual’s instructions. The manual included a specific path to follow and a reminder to ensure all ports were uncovered but did not list the ports or show them on the walk-around diagram. The SO did not see the covered ports. Dispatch of 787s in Melbourne was handled by Dnata, a Qantas contractor. Dnata’s procedures for the walk-arounds do not list the ports specifically but instruct personnel to report any observed “abnormalities.” A dispatcher conducted a walk-around but did not see the tape. The dispatcher “was not aware of the static ports,” the ATSB said, and may not have questioned the tape, as “there are [Qantas] engineers there all the time . . . so we don’t even think to question it.” The flight to Los Angeles was uneventful. The covered ports were discovered during a post-flight inspection by a Qantas engineer. The 787’s engine cowl ports are important but not flight-critical. They serve as a backup to the fuselage ports, which feed air pressure data to the air data reference system, which is then used by the electronic engine control (EEC). “Where no ambient pressure data is available, the EEC assigns a fail-safe mode for continued engine operation,” the ATSB said. The investigation found several shortcomings in both Boeing’s and Qantas’ technical documentation. “Qantas procedures did not identify all of the aircraft’s static ports, and the procedure for restoring the aircraft back to service did not reference Boeing procedures,” the ATSB wrote. “This allowed different interpretations of which ports would be covered.” Boeing’s recommendation to fasten both ends of the streamer tape to the engine (rather than leaving one end hanging down, as is often done) made it less likely that it would be noticed by personnel on a walk-around. Qantas has updated its maintenance procedures to provide references to the applicable Boeing steps. The airline also developed a walk-around video tutorial for flight crews and issued memos to both engineering and flight operations personnel highlighting the fan cowl ports. It also issued a memo to ground support personnel emphasising the importance of flagging any issues noticed during pre-dispatch checks. Dnata said it has added specific reminders to pre-shift briefings. Boeing plans to update its recommended procedures to include placing a placard in the cockpit that specifies that the cowl ports are covered. The current procedure calls for placing a sign on one control wheel when ports are covered but does not suggest listing which specific ports. “When performing safety‑critical tasks like aircraft maintenance, it is very important that procedures are clear and unambiguous to avoid misinterpretation and error such as occurred in this incident,” the ATSB said. “Targeted inspection of locations and components, rather than relying on streamers, which can detach, can help to identify when these covers or devices have not been removed.”

8 June 2022 NASA Project Gathers Data On Climate Influencing Thunderstorms

The five-year study was initiated last summer by NASA’s Earth Sciences Div. and Dynamics and Chemistry of the Summer Stratosphere (DCOTSS) to better understand the effects of “overshooting storms” that generate rising air effects. They boost air, particles and chemicals in thunderstorms over the Midwest from the troposphere, or the lowest layer of the Earth’s atmosphere, into the higher altitude stratosphere, which most thunderstorms do not usually reach. Approximately 50,000 storms occur over the U.S. during a typical summer. So almost every day, somewhere in the U.S., overshooting storms are happening,” said Kenneth Bowman, a Texas A&M University professor of atmospheric science and the DCOTSS principal investigator. He participated in a June 7 NASA news briefing on the effort, a first. There are many scientific questions about the effects of these storms on the stratosphere that we will be able to address with data from DCOTSS. These include the processes operating at the tops of these intense storms, the potential effects of man-made chemicals on the stratospheric ozone layer, and the sources and composition of aerosol particles in the stratosphere. NASA’s chief scientist and climate advisor stated, “We have been observing the Earth for decades. So, we can both see the state of the planet today and also how its changed over time.” The DCOTSS airborne data-gathering effort began in 2021, a year later than planned because of the COVID-19 pandemic. This year’s data gathering relies on about 50 personnel. They include scientists from eight academic institutions, four NASA centers, the National Oceanic and Atmospheric Administration (NOAA) and the National Center for Atmospheric Research, all gathered at the Salina Regional Airport in Kansas. It is the operating base for the Lockheed ER-2 high-altitude flying laborat