Nelaimingi atsitikimai ir incidentai aviacijoje

[Sula]

Yra kita atskaita: įjungti antrą prireikė 4 sekundžių.

Jeigu vienas iš pilotų užsiėmė sabotažu, tai galėjo ir visai neįjungti grumtynių metu.

[Nitro]

Gali ne patys abu mygtukai, bet blokas, kuris juos valdo.

Tokiu atveju cut-off abiejų variklių būtų įvykes vienu metu.

[gerietis]

Kiek aš suprantu ergonomiką ir žmogaus mechaniką, tarp dviejų jungiklių atjungimų yra per trumpas laikas, kad juos atjungtų žmogus.

pilnas youtube su tais jungikliais, nereikia išsigalvoti.

4 sekundžių "prireikė" ne dėl to kad tiek užtruko perkelti ranką kelis centimetrus į šoną.

[Ginthus]

Galėjo, viskas priklauso nuo mechanizmo tipo.
Ką aš girdėjau, kad šie jungikliai turi spyruoklę, gražinančią juos į išjungtą padėtį. Jei dėl kažkokių priežasčių jungiklis mechaniškai pasiekė laisvo judėjimo poziciją, spyruoklė atliko tą darbą, kam ji ir buvo suprojektuota.

Ar tai galėjo įvykti dėl vibracijos, pozicijos išdilimo, netinkamo sumontavimo - atsakys tik tyrimas.

Faktas, kad saugikliai su laiku dyla, o techninė priežiūra gali pažiūrėti pro pirštus. Tokiu atveju užtektų nedidelės "pagalbos" iš šalies, kaip vibracija, rankovė ar net pakabintas rožančius, kad spyruoklės įveiktų nuodylą

[gerietis]

Labai įtariu kad spyruoklės fiksuoja jungiklį abiejose galinėse padėtyse, kaip ir daugumoje jungiklių. Įtariu kad nėra taip, kad į jungti reikia suspaudžiant spyruoklę, o atgal pats atšoka, būtų visiška nesąmonė.

[Lettered]

[Arunasx]

Vaido Čeponio skrydis su „Ryanair“ virto drama: vienas keleivis bandė išlaužti avarinį išėjimą https://www.15min.lt

[digital]

Boeing Fuel Switches Checked, as Critic Cites a Similar Fuel Switch Cutoff in 2019

Dialogue heard on a cockpit voice recording indicates that the captain of the Air India flight that crashed in June, killing 260 people, may have turned off the fuel just after takeoff, prompting the first officer to panic, according to The Wall Street Journal, which cited sources familiar with U.S. official's early assessment... The president of the Federation of Indian Pilots condemned the Wall Street Journal report, saying, "The preliminary report nowhere states that the pilots have moved the fuel control switches, and this has been corroborated by the CVR [cockpit voice recorder] recording."

But meanwhile "India on Monday ordered its airlines to examine fuel switches on several Boeing aircraft models," reports Reuters, "while South Korea ordered a similar measure on Tuesday, as scrutiny intensified of fuel switch locks at the centre of an investigation into a deadly Air India crash."
The precautionary moves by the two countries and airlines in several others came despite the planemaker and the U.S. Federal Aviation Administration assuring airlines and regulators in recent days that the fuel switch locks on Boeing jets are safe... [The preliminary report] noted a 2018 advisory from the FAA, which recommended, but did not mandate, operators of several Boeing models, including the 787, to inspect the locking feature of fuel cutoff switches to ensure they could not be moved accidentally... Some airlines around the world told Reuters they had been checking relevant switches since 2018 in accordance with the FAA advisory, including Australia's Qantas Airways. Others said they had made additional or new checks since the release of the preliminary report into the Air India crash.

The web site of India's Financial Express newspaper spoke to Mary Schiavo, who was Inspector General of America's Transportation Department from 1990 to 1996 (and is also a long-time critic of the FAA). The site notes Schiavo "rejected the claims of human error that a pilot downed the Ahmedabad to London flight by cutting off the fuel supply."
Schiavo exclusively told FinancialExpress.com that this is not the first time fuel switch transitioned from "Run" to "Cutoff" on its own. It happened five years ago, too. "There was an All Nippon Airways (ANA) flight in 2019 in which the 787 aircraft did this itself, while the flight was on final approach. No pilot input cutting off the fuel whatsoever," Schiavo told FinancialExpress.com... "The investigation revealed the plane software made the 787 think it was on the ground and the Thrust Control Malfunction Accommodation System cut the fuel to the engines," she told FinancialExpress.com, before adding, "The pilots never touched the fuel cutoff..." Both engines flamed out immediately after the pilot deployed the thrust reversers for landing. The aircraft, which was also a Boeing 787 Dreamliner, was towed away from the runway by the authorities, and no injuries were reported.

UK Civil Aviation Authority, four weeks before the crash, had warned about similar fuel system issues on Boeing aircraft [on May 15, 2025]. "The FAA has issued an Airworthiness Directive addressing a potential unsafe condition affecting fuel shutoff valves installed on Boeing aircraft," the UK regulator's notice read, listing the B737, B757, B767, B777 and B787...

[Arunasx]

Reuters News Evidence shows Jeju Air pilots shut off less-damaged engine before crash, source says

SEOUL, July 21 (Reuters) - The South Korea-led investigation into Jeju Air's <089590.KS> fatal plane crash in December has "clear evidence" that pilots shut off the less-damaged engine after a bird strike, a source with knowledge of the probe said on Monday.
The source said the evidence, including the cockpit voice recorder, computer data and a physical engine switch found in the wreckage showed pilots shut off the left engine instead of the right engine when taking emergency steps after a bird strike just before it was scheduled to land.
"The investigation team has clear evidence and backup data, so its finding will not change," the source told Reuters on condition of anonymity because investigators have not released an official report including this evidence.
A government source said examinations of the plane's recovered engines found that no defects had been present before the bird strike and crash.
The December 29 crash of the Boeing BA 737-800 jet at Muan Airport killed all but two of the 181 passengers and crew members on board and was the deadliest air disaster on South Korean soil.
Investigators told victims' family members at a briefing on Saturday that the right engine had been more severely damaged by a bird strike than the left, and there was circumstantial evidence that pilots had turned off the less-damaged left engine, according to a third source who was at the briefing.
South Korean media outlets including MBN and Yonhap reported that information on Saturday and Sunday.
South Korea's Aviation and Railway Accident Investigation Board (ARAIB), which is leading the investigation, did not respond immediately to a request for comment.
Boeing referred questions about the crash to ARAIB. Engine maker CFM International, a joint venture between GE and France's Safran SAF, did not immediately respond to a request for comment.
Jeju Air said it was actively cooperating with the ARAIB's investigation and awaiting the official announcement of the results...