Air India flight saw fuel switches turned off, says report
Fuel supplies to the engines of the Air India jet were reportedly cut off prior to the devastating crash that resulted in over 240 fatalities last month. A preliminary disaster investigation suggests that these fuel cuts seemed to happen without either pilot turning them off.
On June 12, the Boeing 787 Dreamliner crashed shortly after takeoff, marking one of the deadliest accidents involving British nationals. The Aircraft Accident Investigation Bureau's report, released late on Friday, confirmed the jet was carrying 54,200kg of fuel, which was within the 'allowable limits'.
However, the report then said: "The aircraft achieved the maximum recorded airspeed of 180 Knots IAS at about 08:08:42 UTC and immediately thereafter, the Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to CUTOFF position one after another with a time gap of 01 sec. The Engine N1 and N2 began to decrease from their take-off values as the fuel supply to the engines was cut off.
"In the cockpit voice recording, one of the pilots is heard asking the other why did he cutoff. The other pilot responded that he did not do so." Referencing data recovered from the plane's two Enhanced Airborne Flight Recorders (EAFR), it continued: "As per the EAFR, the Engine 1 fuel cutoff switch transitioned from CUTOFF to RUN at about 08:08:52 UTC. The APU Inlet Door began opening at about 08:08:54 UTC, consistent with the APU Auto Start logic.
"Thereafter, at 08:08:56 UTC the Engine 2 fuel cutoff switch also transitions from CUTOFF to RUN. When fuel control switches are moved from CUTOFF to RUN while the aircraft is inflight, each engine's full authority dual engine control (FADEC) automatically manages a relight and thrust recovery sequence of ignition and fuel introduction."
As the engines began to recover, one pilot transmitted 'mayday, mayday, mayday' before the jet was seen crashing outside the airport by air traffic control. The crash resulted in the death of 241 people on board, with only one passenger surviving. A further 19 others also died amidst the crash and 67 were seriously injured.
The plane crashed into a residential area of Ahmedabad, hitting a medical college hostel. The report states: "The aircraft was destroyed due to impact with the buildings on the ground and subsequent fire. A total of five buildings were impacted and suffered major structural and fire damages."
The only surviving passenger was Briton Vishwash Kumar Ramesh, who previously told The Sun it was a 'miracle' he was alive but felt 'terrible' he could not save his brother Ajay.
Both pilots, who were based in Mumbai and had arrived in Ahmedabad the day before, had taken an 'adequate rest period' prior to the flight. The crew, who had previously undergone a breathalyser test, were recorded as fit to operate the flight.
No notable bird activity was observed near the flight path, and the aircraft began losing altitude before crossing the airport perimeter wall. Both engines were retrieved from the wreckage and quarantined at a hangar in the nearby airport. Investigators have identified 'components of interest for further examinations,' the report says.
Fuel samples taken from the tanks used for refuelling the aircraft were also deemed 'satisfactory'. The report added: "Very limited amount of fuel samples could be retrieved from the APU filter and Refuel/Jettison valve of the left wing.
"The testing of these samples will be done at a suitable facility capable of carrying out the test with the limited available quantity." Investigators have collected statements from Mr. Ramesh and witnesses, and they will also review the post-mortem reports of the crew and passengers.
This is being done 'to corroborate aeromedical findings with the engineering appreciation,' the report adds. An Air India spokesman said: "Air India stands in solidarity with the families and those affected by the AI171 accident. We continue to mourn the loss and are fully committed to providing support during this difficult time.'
The spokesman added: "Air India is working closely with stakeholders, including regulators. We continue to fully co-operate with the Aircraft Accident Investigation Bureau (AAIB) and other authorities as their investigation progresses.
"Given the active nature of the investigation, we are unable to comment on specific details and refer all such enquiries to the AAIB."
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The Independent
23 minutes ago
- The Independent
What are fuel switches and why do they matter in the Air India crash?
The first clues from the investigation into the London Gatwick -bound Air India plane that crashed in India's Ahmedabad last month, killing 260 people, reveal that the aircraft's engine fuel cutoff switches shut off the fuel supply to the engines almost simultaneously, causing confusion among the pilots. According to the preliminary report by India's Aircraft Accident Investigation Bureau (AAIB), released early Saturday, the cockpit voice recorder captured one pilot asking the other why he had cut off the fuel in the final moments before the crash. The other pilot responded that he had not done so, the report revealed, raising fresh questions about the position of the critical engine fuel cutoff switches. The report from India's AAIB did not identify which remarks were made by the flight's captain and which by the first officer. It is also not immediately clear which pilot issued the 'Mayday, Mayday, Mayday' call to air traffic control in Ahmedabad just before the crash. In what is the world's deadliest aviation accident in a decade, the Boeing 787 Dreamliner bound for London on 12 June from the western Indian city of Ahmedabad began losing thrust and started to descend shortly after takeoff. One of the closed-circuit TV footages captured the moment the plane lifted off the ground, followed by the deployment of a backup energy source called the ram air turbine (RAT). These early signs, even before the report, suggested that the high-end aircraft had lost power from both engines. New clues into the plane crash reveal that the fuel switches flipped almost simultaneously from 'run' to 'cutoff' just after takeoff. The preliminary report does not explain how the switches could have moved to the 'cutoff' position during the flight. At the crash site, both fuel switches were found in the 'run' position, and there were indications that both engines had begun relighting before the low-altitude crash, according to the report released around 1.30am IST on Saturday (2000 GMT on Friday). What are fuel cutoff switches? The fuel control switches, prominently located on the critical cockpit control panel, regulate the flow of fuel into each of the plane's two engines. Pilots flying the aircraft use fuel cutoff switches to start or shut down engines on the ground. In the event of an engine failure during a flight, the pilots can manually shut down or restart engines using these switches. They are centrally located on the pedestal between the two pilot seats, positioned just behind the throttle levers. These switches cannot be accidentally or gently moved by pilots operating a flight. The fuel cutoff switches are spring-loaded to remain firmly in place. They operate in two modes — 'CUTOFF' and 'RUN'. 'Cutoff' stops the fuel supply to the engine, while 'Run' allows fuel to flow. A pilot must first pull the switch up before moving it from the 'Run' to the 'Cutoff' position, or vice versa. Aviation experts have emphasised that these switches cannot be accidentally moved while operating the flight deck; if they are moved, the engine power would immediately be cut off. US aviation safety expert John Cox has said that the fuel cutoff switches and the fuel valves are two independent power systems, and that the valves are controlled by the switches. Why do they matter in the Air India crash? The fuel cutoff switches offer the first preliminary insight into the Air India plane crash. According to the report, there was no indication of an onboard emergency that would have required an engine cutoff. Switching to cutoff is typically done to shut down engines after a plane has reached the airport gate or in specific emergencies, such as an engine fire. No such situation was recorded in the report. A pilot would almost never turn the switches off mid-flight, especially during the initial climb, said US aviation expert John Nance. Additionally, the report notes, citing maintenance records, that the throttle control module on VT-ANB was replaced in 2019 and again in 2023. 'However, the reason for the replacement was not linked to the fuel control switch. There has been no defect reported pertaining to the fuel control switch since 2023 on VT-ANB,' it said. Aviation experts in India have urged caution in drawing final conclusions from the preliminary report on the Air India flight's crash, but said it is 'conclusive that the fuel to engines was cut'. 'Remember, a preliminary report lays out the facts of the case, not the why of the case. So, don't be quick to jump to conclusions. The only thing conclusive is that the fuel to engines was cut. The Why is the more mysterious question, one that will take time to establish,' said Ajay Awtaney, an Indian aviation journalist wrote on X.
The Independent
an hour ago
- The Independent
Air India crash latest: India orders airlines to check Boeing fuel switches after report on Ahmedabad tragedy
India's aviation regulator has ordered airlines to inspect fuel switch locks on Boeing aircraft after a report on the Air India Flight 171 crash showed both engines lost fuel seconds after takeoff. The US aviation regulator has insisted the type of fuel switch installed on the Air India Boeing 787-8 was safe amid a growing row over who is to blame for the deadly crash. A preliminary investigation into the disaster noted a US aviation regulator 2018 bulletin which recommended airlines inspect the fuel switch locking mechanism of Boeing planes. The US FAA said its 2018 advisory "was based on reports that the fuel control switches were installed with the locking feature disengaged" but added this did not make the planes unsafe. India's Aircraft Accident Investigation Bureau said Air India did not do this at the time, while also suggesting human error might have been to blame for the crash which killed 260 people on 12 June. It found that switches controlling fuel flow to the jet's two engines had been moved from 'run' to the 'cut-off' position shortly after take off to London Gatwick. The Indian Commercial Pilots' Association said the crew "acted in line with their training and responsibilities under challenging conditions and the pilots shouldn't be vilified based on conjecture". Key questions after Air India flight 171 crash report How did both engine fuel control switches – designed with locking mechanisms to prevent accidental movement – get flipped to the 'cutoff' position within seconds of takeoff? Could a mechanical malfunction override the spring-loaded safety design, or was it human error? Why were the switches later found back in the 'run' position at the crash site – were the pilots trying to recover engine power too late? What exactly happened in the cockpit during those final 32 seconds, and why did one pilot ask the other, 'Why did you cut it off?' Is there evidence of confusion, miscommunication, or a systems failure? Can such a catastrophic loss of thrust occur again, despite multiple safety barriers meant to prevent it? Maroosha Muzaffar15 July 2025 05:00 India's aviation regulator orders airlines to inspect fuel switch locks on Boeing India's aviation regulator has ordered airlines to inspect fuel switch locks on Boeing aircraft after a report on the Air India Flight 171 crash showed both engines lost fuel seconds after takeoff. The Directorate General of Civil Aviation issued the order after several Indian and foreign airlines began inspecting the fuel switch locking mechanisms on their own. The prelim report into the Air India flight 171 has triggered debate over pilot error versus mechanical failure. While Air India urged caution, pilot unions condemned speculation, especially around suicide. A 2018 FAA advisory had flagged fuel switch lock issues on some Boeing models. Maroosha Muzaffar15 July 2025 04:52 What the preliminary report reveals about the Air India crash The cockpit voice recorder from Air India Flight 171 has shed light on the tense final moments before the crash, with one pilot reportedly asking the other, 'Why did you cut it off?' – a reference to the fuel control switches that were somehow flipped to the 'cut-off' position just after takeoff, causing both engines to lose power. The preliminary report stops short of assigning blame, but the exchange has reopened the debate around pilot error and mechanical fault. Even the insinuation that a pilot's error could be behind the crash has angered the community. An Indian pilots' association rejected the presumption of pilot error in the Ahmedabad crash. The Airline Pilots' Association of India (ALPA-India), which represents Indian pilots at the Montreal-based International Federation of Air Line Pilots' Associations, called for "fair, fact-based inquiry." "The pilots body must now be made part of the probe, at least as observers," ALPA India president Sam Thomas said on Sunday. Maroosha Muzaffar15 July 2025 04:30 Who were the pilots of doomed Air India flight as preliminary report brings scrutiny? Captain Sumeet Sabharwal: Sabharwal, 56, started his aviation career in the early 1990s and logged more than 15,000 hours of flying experience. Joining Air India in 1994, he went on to become 'line training captain', a role to train and guide co-pilots during live flights. He had obtained clearances to fly as pilot-in-command on several aircraft, including the Boeing 787 and 777 and the Airbus A310. First officer Clive Kunder: Unlike Captain Sabharwal, first officer Cliver Kunder, 32, was at the beginning of a promising aviation career, with over 3,400 hours of flight time to his name. Kunder grew up in Mumbai and was living alone in the Goregaon area. According to Indian media reports citing relatives, he had dreamt of flying since childhood. He began his journey as a pilot in 2012 and joined Air India in 2017. Read more about them here: Who were the pilots of doomed Air India flight? One pilot was nearing retirement while the other just beginning his aviation career Maroosha Muzaffar15 July 2025 04:00 What did the Air India CEO say in internal memo? The probe into last month's crash of an Air India plane in Ahmedabad is far from over and it is unwise to jump to any premature conclusions, airline CEO Campbell Wilson said in an internal memo on Monday after the release of a preliminary report by investigators. The memo, reviewed by Reuters, comes after the report depicted confusion in the cockpit shortly before the crash of the Boeing Dreamliner that killed 260 people. It said the plane's engine fuel cutoff switches flipped almost simultaneously and starved the engines of fuel. 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Alexander Butler15 July 2025 03:00 Recap: Families of victims left questioning how the tragedy took place The findings have left some families of victims questioning how the tragedy took place, and if it was avoidable. Badasab Syed, 59, who lost his brother, 49-year-old IT professional Inayat Syed, his sister-in-law, and their two children in the crash, said he has just been left with more questions. He told the BBC: 'The report mentions the pilots discussing who turned off fuel and a possible issue with the fuel control switch. We don't know what that means? Was it avoidable?' Ayushi Christian, who married Lawrence Christian in 2023 before migrating to the UK, said her husband was in India because he had been performing the last rites of his father. He was on the AI 171 flight to return home to the UK. Following the release of an initial report into the incident, Ms Christian told the BBC: 'It has been one month since the crash, but no action has been taken by the government so far. [The] preliminary investigation report has come out today. Action should be taken against those responsible for the incident.' Alexander Butler15 July 2025 02:00 Not easy to 'accidentally' cut off fuel switches, expert says on Air India crash The fuel switches that were cut off before the Air India plane crash are the kind used on every flight, and designed so that this cannot easily "accidentally" happen, an aviation expert has said. The fuel switches are used at the end of every flight and in emergency scenarios such as a fire, director of aerospace and aviation at Cranfield University, Professor Graham Braithwaite said, adding that pilots would generally run through a checklist before turning them off. He said: "For obvious reasons, the two switches are a distance apart, so not a huge distance, but enough that you couldn't accidentally switch two when you're trying to switch one. "So it's not like the lights in your house, where they're right next to each other, so there is some space between them. "They're in that centre console, so that's in between the two pilots, so they can each reach them with the same ease." Alexander Butler15 July 2025 01:00 Recap: South Korea set to order airlines to check Boeing jet fuel switches South Korea is preparing to order all airlines in the country that operate Boeing jets to examine fuel switches in the focus of an investigation of a deadly Air India crash that killed 260 people. Fuel switch locks have come under scrutiny after a mention of a 2018 advisory from the US Federal Aviation Administration (FAA) in a preliminary report into last month's crash of Air India's Boeing 787-8 jet. A spokesperson for the South Korean transport ministry said the checks were in line with a 2018 advisory from the FAA, but did not give a timeline for inspections. Boeing referred Reuters' questions to the FAA, which was not immediately available to comment outside regular hours. Alexander Butler14 July 2025 23:00 Who were the pilots of doomed Air India flight as preliminary report brings scrutiny? Who were the pilots of doomed Air India flight? One pilot was nearing retirement while the other just beginning his aviation career Alexander Butler14 July 2025 22:00 Simon Calder answers your air travel safety questions – from Boeing worries to the truth about budget airlines Simon Calder on air travel safety – from Boeing to budget airlines
North Wales Chronicle
3 hours ago
- North Wales Chronicle
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