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Tragic connection between doomed jets: How Air India, MH370 and Germanwings disasters all sparked fears their captains suffered mental health issues - as experts warn not enough is done to help pilots

Tragic connection between doomed jets: How Air India, MH370 and Germanwings disasters all sparked fears their captains suffered mental health issues - as experts warn not enough is done to help pilots

Daily Mail​16 hours ago
Investigators probing the crash of Air India Flight 171 have turned their attention to the pilot's medical history amid fears he may have been suffering from mental health issues at the time of the disaster.
Captain Sumeet Sabharwal, an experienced pilot with more than 15,000 hours flying time, was piloting the Boeing 787 Dreamliner when it plummeted into a residential area in Ahmedabad, killing all but one of the 242 people on board.
Switches controlling the fuel flow to the jet's two engines were turned off shortly after take off, a preliminary report released by the Indian authorities has indicated, resulting in a catastrophic loss of power and the aircraft crashing to the ground.
The investigation by India's Aircraft Accident Investigation Bureau (AAIB), claimed that one pilot asked the other why he cut off the fuel, and the second pilot responded that he had not.
The report, coupled with claims that Captain Sabharwal had taken bereavement leave and was suffering with depression following his mother's death, has raised questions over whether enough is being done to assess and safeguard pilots' mental health.
Air India's CEO has warned that the investigation into what happened is still far from over, telling staff in an internal memo today that it is unwise to jump to any conclusions.
The AAIB said the preliminary report found no mechanical or maintenance faults and that all required maintenance had been carried out, but also did not offer any conclusions or apportion blame for the June 12 disaster.
While the exact cause of the crash is likely to remain unknown for some time, the aviation world is tragically no stranger to man-made catastrophes.
These include those triggered by mental health crises - with experts warning that not enough is being done to support pilots and other aviation professionals.
Horrifying video showed the moment the Air India jet crashed into a medical college in Ahmedabad on June 12
If included as a category in worldwide air-crash statistics, pilot murder-suicides would be the second biggest cause of fatalities in Western-built aircraft since 2012, data compiled by Bloomberg found in 2022.
The most notorious crash attributed to pilot suicide, the 2015 Germanwings disaster, saw 150 passengers killed when their plane crashed into a French mountain.
Investigators revealed in the days after the crash that co-pilot Andreas Lubitz had locked the flight's captain out of the cockpit to deliberately set the plane on a collision course with a mountainside.
It emerged that Lubitz had suffered from depression in the past, but was later deemed fit to fly. He had searched online for ways to end his life, before researching the security of cockpit doors.
As prosecutors dug deeper into what had happened, they found that the pilot had suffered from a 'severe' depressive episode before being hired - something the airline was not informed of.
Just weeks before the crash, a psychiatrist diagnosed a psychosomatic disorder and possible psychosis, but Lubitz hid his sick notes.
Prosecutors believed he became 'virtually obsessed' with an 'unfounded' fear of losing his vision - a condition that would surely end his career as a pilot.
The findings led investigators to conclude that Lubitz had deliberately cast the plane down into the mountains in a deliberate attempt to end his own life.
Aviation psychologist Marc Atherton said the incident encouraged him to get involved in the area of pilot mental health, which he felt was being overlooked.
'It was painfully obvious that the global industry had a very good process around safety for physical risks, for operational risks and for technical risks, but what seemed to be missing was a coherent approach to the mental health and performance risk of all of the safety-critical groups in the industry,' he said.
Surveys of airline pilots have shown that between four and eight per cent have contemplated suicide, roughly in line with the general population.
Airline pilots must undergo periodic medical examinations to keep their licences, with the profession one of very few in which employees must disclose all their health information in order to work.
Captain Mohan Ranganathan, a leading aviation safety expert in India, told the Telegraph that he had heard from 'several Air India pilots' that Captain Sabharwal had 'some mental health issues.'
But, he emphasised, the pilot 'must have been medically cleared by the company doctors [to fly]. They must have given the clearance certificate.'
If pilots develop a mental health condition in between the exams and do not disclose it, they can be stopped from flying.
This, experts say, means many conceal their health information or avoid mental health checks out of fear of being put out of work.
A 2022 study found that 56.1 per cent of the 3,765 US pilots who participated in the survey reported a 'history of healthcare avoidance behaviour' due to the risk of losing their licence.
After the Germanwings crash, a US panel warned that there was 'no convincing evidence' that screening for suicidal tendencies would prevent similar disasters.
Another possible way to mitigate the risk of a suicidal pilot taking control of the plane away from their co-pilot was to change door designs, preventing them from being locked.
The 2013 crash of a Mozambican airliner in Namibia saw pilot Hermino dos Santos Fernandes himself in the cockpit, preventing his co-pilot from entering as he made a 'deliberate series of manoeuvres' causing the crash, investigators said.
But authorities have warned against changing the design of doors, saying sophisticated locks are needed to prevent cockpit invasions and hijackings.
Pilot suicide was among the countless theories floated in relation to the disappearance of Flight MH370 in 2014.
The Malaysia Airlines jet was on its way from Kuala Lumpur to Beijing with 239 people on board when it vanished and became one of the greatest mysteries in aviation.
No sign of the plane was found in a 46,000-square mile Indian Ocean search zone and the Australian-led search, the largest in history, was suspended in January 2017.
In 2020, former Australian prime minister Tony Abbott claimed that top Malaysian officials believed the aircraft vanished after veteran pilot Zaharie Ahmad Shah intentionally crashed it.
'My very clear understanding from the very top levels of the Malaysian government is that from very, very early on here, they thought it was murder-suicide by the pilot,' he told Sky News.
'I'm not going to say who said what to whom but let me reiterate, I want to be absolutely crystal clear, it was understood at the highest levels that this was almost certainly murder-suicide by the pilot - mass murder-suicide by the pilot.'
Zaharie's family have long strongly rejected such claims as baseless, while Malaysia's prime minister at the time of the tragedy also said there was 'no conclusive proof'.
Captain Dave Fielding, chair of the International Peer Assist Aviation Coalition (IPAAC), has long campaigned for the improved monitoring of mental health among all aviation workers - from pilots to cabin crew and engineers.
'Big picture-wise, pilot mental health and performance is the new front on flight safety, and is where we should be focusing our efforts,' he said in an interview with the British Safety Council last September.
The Royal Aeronautical Society (RAeS) last year published a paper on the challenges mental health issues, and the lack of support available for them, continue to pose to the aviation industry globally.
Publishing the report, RAeS chief executive David Edwards said: 'Whilst the industry is doing more to support staff who are already facing mental health issues, there remains a lack of psychosocial risk management systems to prevent the development of mental health issues in the first place.'
While the report has generated a significant response from around the world, industry experts agree that there is still work to be done to encourage airline pilots and other aviation professionals to come forward with mental health concerns.
'There has been much good work done across the world in this area,' Captain Fielding told MailOnline. 'But it is in its infancy and a lot more needs to be done.'
IPAAC, which he chairs, is a not-for-profit which develops peer support programmes to help 'provide a vital method for safety-critical personnel in aviation to seek help for mental health and wellbeing issues.'
In a statement to MailOnline, the organisation said: 'The mental health and wellbeing of all safety-critical personnel in aviation is a safety issue.
'The role of Peer Support Programmes is more critical than ever in assisting our colleagues when they need support from a friendly and confidential co-worker, trained to give specific assistance.'
For help and support, call the Samaritans for free from a UK phone, completely anonymously, on 116 123 or go to samaritans.org
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‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault
‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault

Scottish Sun

time4 hours ago

  • Scottish Sun

‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault

Click to share on X/Twitter (Opens in new window) Click to share on Facebook (Opens in new window) AN EXPLOSIVE new theory from a top aviation expert has ignited fears that the devastating Air India crash may not have been an accident - but the result of a human act inside the cockpit. Captain Steve Scheibner suggested there was a "human hand" behind the tragedy of fight AI 171 - and insisted the aircraft itself was not to blame. Sign up for Scottish Sun newsletter Sign up 12 The plane seconds before disaster 12 Officials inspect the remains of the Air India passenger plane at the crash site in Ahmedabad Credit: Knaresborough Cricket Club 12 The Boeing 787 Dreamliner plummeted into a doctors' hostel 12 Captain Steve Scheibner believes the Air India crash may have been a result of a human act inside the cockpit, not an accident Credit: Piers Morgan Uncensored Scheibner, a seasoned pilot and respected aviation analyst, told Piers Morgan Uncensored: "I don't think Boeing has fault in this one. "My take on it is that the aeroplane was operating exactly the way it was designed, I don't think there was anything wrong with this particular aircraft." The Boeing 787 Dreamliner plummeted into a doctors' hostel just seconds after takeoff from Ahmedabad on July 13. It killed 241 passengers and 19 people on the ground in one of the worst disasters in aviation history, with only one passenger miraculously surviving. But while the early narrative leaned toward tragic malfunction, Scheibner was blunt: "When you place both fuel cutoff switches to cut off, that will fuel-starve the engines and they'll both flame out." And whether it was intentional or a mistake, he said: "Some things are plain and some things are clear, whether it was intentional, placing of the fuel control switches to cut off, or unintentional, that's two different things. "But I really firmly believe that there had to be a human hand on both of those for them to go to cut off." His comments follow a damning preliminary report by Indian crash investigators, which found the Dreamliner's fuel switches were manually moved from "RUN" to "CUTOFF" shortly after liftoff - an action that shut down both engines and triggered a fatal loss of thrust. They were turned back to "RUN" seconds before the crash, but it was too late. Cockpit audio captured one pilot asking: 'Why did you cut off?' and the other replying, 'I didn't.' Fuel switch-off on doomed Air India flight looks to be 'conscious human action', former pilot says 12 A cockpit view of a Boeing 787 Dreamliner aircraft shows the fuel switch; Annotations by The Sun Graphics Credit: Getty 12 An image showing how the fuel cut off switches have to be deliberately 'unlocked' before being moved Neither crew member was identified in the report, which also refrained from stating whether the switches were moved by mistake or by deliberate action. "There is no universe where there's any procedure ever in the history of commercial flight where you place both fuel control switches to cut off, leave them there for 10 seconds, right after rotate," Scheibner said, referencing the moment of liftoff. 'Two and a half billion to one' The aviation expert said the offs of a dual engine flameout on a Boeing 787 seconds after takeoff were "two and a half billion to one". "Everything just seems unbelievable," he added. Scheibner went on to explain: "There is no universe where there's any procedure ever in the history of commercial flight where you place both fuel control switches to cut off, leave them there for 10 seconds, right after, rotate, there is just not a scenario that that fits into. "And this according to the report, that's what happened." Key findings of the report: Dual engine shutdown - fuel cutoff switches moved from 'RUN' to 'CUTOFF' - fuel cutoff switches moved from 'RUN' to 'CUTOFF' Confusion between pilots - cockpit audio confirms one pilot asked 'why did you cutoff', the other replied 'I didn't' - cockpit audio confirms one pilot asked 'why did you cutoff', the other replied 'I didn't' RAT deployed - as seen in CCTV footage before the crash - as seen in CCTV footage before the crash Engine relight attempted - fuel switches were found returned to the "RUN" at crash site - fuel switches were found returned to the "RUN" at crash site 32 seconds - the time the aircraft was airborne before it crashed the time the aircraft was airborne before it crashed Thrust levers mismatch - Thrust levers found at idle but black box data shows takeoff thrust was still engaged - Thrust levers found at idle but black box data shows takeoff thrust was still engaged Fuel test pass - fuel was clean without any contamination - fuel was clean without any contamination Normal take-off set-up - Flaps and landing gear correctly configured - Flaps and landing gear correctly configured No bird activity - clear skies, good visibility, light winds - clear skies, good visibility, light winds Pilot credentials clear - both medically fit and rested - both medically fit and rested No sabotage detected - although FAA alerted over a known fuel switch vulnerability not checked by Air India - although FAA alerted over a known fuel switch vulnerability not checked by Air India Aircraft loading - the flight was within weight and balance limits Captain Scheibner isn't the only one raising red flags. Ex-pilot and aviation commentator Terry Tozer also weighed in this week, calling the odds of accidental switch-off "vanishingly small". He told The Sun: "The fuel cutoff switches were actioned shortly after lift off from RUN to CUTOFF. "That implies that somebody did that as a conscious human action, because so far as we understand, these switches have a lock mechanism." "They have to be lifted in order to be moved," he explained. "Otherwise they lock in position." Tozer flatly dismissed the idea of accidental flicking, saying: "I can't see why any pilot would have their hands anywhere near the area where these switches are located." 12 Vishwash Ramesh, the sole survivor of the Air India crash, poses for the first time since the disaster 12 Wreckage of the Air India Boeing 787-8 Dreamliner plane sits on the ground outside Sardar Vallabhbhai Patel International Airport 12 Landing gear of the Air India plane crashed directly on the BJ Medical College UG hostel mess Tragic profile emerges The growing suspicion around the crash deepens with revelations about the pilot at the helm. Captain Sumeet Sabharwal, a respected 56-year-old veteran, was reportedly just months from retirement and grieving the recent death of his mum. Neighbours say he was planning to leave flying altogether to care for his 92-year-old father. 'Just one or two more flights… then I'm going to just be with Papa,' he reportedly told a friend. But now, Captain Sabharwal's mental health is under scrutiny. Aviation sources in India told The Telegraph he had battled depression and taken time off in the years before the crash. Though he passed a Class I medical exam in September 2024, investigators are now combing through his medical records for clues. Leading Indian aviation expert Captain Mohan Ranganathan said: 'I have heard from several Air India pilots who told me he had some depression and mental health issues. He had taken time off from flying in the last three to four years.' Families of the victims who tragically died in the crash have slammed the preliminary report as a cover-up. They have dubbed the investigation "biased" and said it only appears to "blame the dead pilots". The Airline Pilots' Association of India (APAI) rejected the 'tone and direction' of the inquiry and said it came without sufficient evidence. Air India CEO Campbell Wilson also urged caution, warning staff in a leaked memo that the probe was far from over. 'The preliminary report identified no cause nor made any recommendations,' he wrote, adding that 'it provided both greater clarity and opened additional questions.' 12 Captain Sumeet Sabharwal was the lead pilot in the doomed Air India flight Credit: YouTube @Sheriff Hutton Bridge Cricket Club 12 Clive Kunder was the co-pilot on the doomed flight No fault found with aircraft The report confirmed that there were no mechanical issues, no bird strikes, and no fuel contamination. The aircraft's configuration for takeoff was normal, and both pilots were medically cleared and well-rested. It also highlighted that Boeing's fuel control switches — which require lifting and unlocking before moving — were working as designed. The FAA had issued a non-binding notice in 2018 about switch locking mechanisms on similar aircraft, but no airworthiness directive followed, and Air India admitted it had not carried out the suggested inspections. Still, both Scheibner and Tozer agree: it's extraordinarily unlikely this was a case of pure human error. 'We do know that the switches were placed to cut off,' said Scheibner. 'And 10 seconds later they were placed back to run… if one did it, the other probably was the one that undid it.'

‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault
‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault

The Sun

time4 hours ago

  • The Sun

‘Human hand' HAD to be involved in Air India crash disaster, pilot says…as he reveals billions-to-one odds of tech fault

AN EXPLOSIVE new theory from a top aviation expert has ignited fears that the devastating Air India crash may not have been an accident - but the result of a human act inside the cockpit. Captain Steve Scheibner suggested there was a "human hand" behind the tragedy of fight AI 171 - and insisted the aircraft itself was not to blame. 12 12 12 Scheibner, a seasoned pilot and respected aviation analyst, told Piers Morgan Uncensored: "I don't think Boeing has fault in this one. "My take on it is that the aeroplane was operating exactly the way it was designed, I don't think there was anything wrong with this particular aircraft." The Boeing 787 Dreamliner plummeted into a doctors' hostel just seconds after takeoff from Ahmedabad on July 13. It killed 241 passengers and 19 people on the ground in one of the worst disasters in aviation history, with only one passenger miraculously surviving. But while the early narrative leaned toward tragic malfunction, Scheibner was blunt: "When you place both fuel cutoff switches to cut off, that will fuel-starve the engines and they'll both flame out." And whether it was intentional or a mistake, he said: "Some things are plain and some things are clear, whether it was intentional, placing of the fuel control switches to cut off, or unintentional, that's two different things. "But I really firmly believe that there had to be a human hand on both of those for them to go to cut off." His comments follow a damning preliminary report by Indian crash investigators, which found the Dreamliner's fuel switches were manually moved from "RUN" to "CUTOFF" shortly after liftoff - an action that shut down both engines and triggered a fatal loss of thrust. They were turned back to "RUN" seconds before the crash, but it was too late. Cockpit audio captured one pilot asking: 'Why did you cut off?' and the other replying, 'I didn't.' Fuel switch-off on doomed Air India flight looks to be 'conscious human action', former pilot says 12 12 Neither crew member was identified in the report, which also refrained from stating whether the switches were moved by mistake or by deliberate action. "There is no universe where there's any procedure ever in the history of commercial flight where you place both fuel control switches to cut off, leave them there for 10 seconds, right after rotate," Scheibner said, referencing the moment of liftoff. 'Two and a half billion to one' The aviation expert said the offs of a dual engine flameout on a Boeing 787 seconds after takeoff were "two and a half billion to one". "Everything just seems unbelievable," he added. Scheibner went on to explain: "There is no universe where there's any procedure ever in the history of commercial flight where you place both fuel control switches to cut off, leave them there for 10 seconds, right after, rotate, there is just not a scenario that that fits into. "And this according to the report, that's what happened." Key findings of the report: Dual engine shutdown - fuel cutoff switches moved from 'RUN' to 'CUTOFF' Confusion between pilots - cockpit audio confirms one pilot asked 'why did you cutoff', the other replied 'I didn't' RAT deployed - as seen in CCTV footage before the crash Engine relight attempted - fuel switches were found returned to the "RUN" at crash site 32 seconds - the time the aircraft was airborne before it crashed Thrust levers mismatch - Thrust levers found at idle but black box data shows takeoff thrust was still engaged Fuel test pass - fuel was clean without any contamination Normal take-off set-up - Flaps and landing gear correctly configured No bird activity - clear skies, good visibility, light winds Pilot credentials clear - both medically fit and rested No sabotage detected - although FAA alerted over a known fuel switch vulnerability not checked by Air India Aircraft loading - the flight was within weight and balance limits Captain Scheibner isn't the only one raising red flags. Ex-pilot and aviation commentator Terry Tozer also weighed in this week, calling the odds of accidental switch-off "vanishingly small". He told The Sun: "The fuel cutoff switches were actioned shortly after lift off from RUN to CUTOFF. "That implies that somebody did that as a conscious human action, because so far as we understand, these switches have a lock mechanism." "They have to be lifted in order to be moved," he explained. "Otherwise they lock in position." Tozer flatly dismissed the idea of accidental flicking, saying: "I can't see why any pilot would have their hands anywhere near the area where these switches are located." 12 12 12 Tragic profile emerges The growing suspicion around the crash deepens with revelations about the pilot at the helm. Captain Sumeet Sabharwal, a respected 56-year-old veteran, was reportedly just months from retirement and grieving the recent death of his mum. Neighbours say he was planning to leave flying altogether to care for his 92-year-old father. 'Just one or two more flights… then I'm going to just be with Papa,' he reportedly told a friend. But now, Captain Sabharwal's mental health is under scrutiny. Aviation sources in India told The Telegraph he had battled depression and taken time off in the years before the crash. Though he passed a Class I medical exam in September 2024, investigators are now combing through his medical records for clues. Leading Indian aviation expert Captain Mohan Ranganathan said: 'I have heard from several Air India pilots who told me he had some depression and mental health issues. He had taken time off from flying in the last three to four years.' Families of the victims who tragically died in the crash have slammed the preliminary report as a cover-up. They have dubbed the investigation"biased" and said it only appears to "blame the dead pilots". The Airline Pilots' Association of India (APAI) rejected the 'tone and direction' of the inquiry and said it came without sufficient evidence. Air India CEO Campbell Wilson also urged caution, warning staff in a leaked memo that the probe was far from over. 'The preliminary report identified no cause nor made any recommendations,' he wrote, adding that 'it provided both greater clarity and opened additional questions.' 12 No fault found with aircraft The report confirmed that there were no mechanical issues, no bird strikes, and no fuel contamination. The aircraft's configuration for takeoff was normal, and both pilots were medically cleared and well-rested. It also highlighted that Boeing's fuel control switches — which require lifting and unlocking before moving — were working as designed. The FAA had issued a non-binding notice in 2018 about switch locking mechanisms on similar aircraft, but no airworthiness directive followed, and Air India admitted it had not carried out the suggested inspections. Still, both Scheibner and Tozer agree: it's extraordinarily unlikely this was a case of pure human error. 'We do know that the switches were placed to cut off,' said Scheibner. 'And 10 seconds later they were placed back to run… if one did it, the other probably was the one that undid it.'

Boeing 787 diverted mid-flight over fuel switch safety check
Boeing 787 diverted mid-flight over fuel switch safety check

Daily Mail​

time7 hours ago

  • Daily Mail​

Boeing 787 diverted mid-flight over fuel switch safety check

A Boeing jet bound for India was forced to turn back to get its fuel control switches checked as investigations into the Air India tragedy continue. Etihad Airways flight EY352, travelling from Abu Dhabi to Hyderabad made its return to the UAE capital after an engineering work order came into place on Sunday mid-flight, according to Times of India. The order to inspect the locking mechanism on fuel supply switches came after a report by India's Aircraft Investigation Bureau was published on Saturday. The Boeing 787-9 plane departed Abu Dhabi at 10pm local time before it was diverted back, data from flight tracking site FlightAware shows. The flight was one and a half hours into the nearly four-hour journey to Rajiv Gandhi International airport when it was diverted. MailOnline has approached Etihad Airways for comment. It comes as the preliminary Air India report found that fuel switches for the engines of the doomed plane, which c rashed last month in Ahmedabad, had almost simultaneously flipped just seconds after takeoff. This meant that the Boeing 787 Dreamliner began to lose thrust and sink down moments after setting of to London from the Indian city on June 12. India's Directorate General of Civil Aviation has since ordered airlines to inspect the fuel switches on certain aircraft, including Boeing 787s and 737s, following the fatal crash that killed 260 people. In the flight's final moments, one pilot was heard on the cockpit voice recorder asking the other why he cut off the fuel. 'The other pilot responded that he did not do so,' the report by India's Aircraft Accident Investigation Bureau (AAIB) said. It did not identify which remarks were made by the flight's captain and which by the first officer, nor which pilot immediately transmitted the distress call: 'Thrust not achieved... falling... Mayday! Mayday! Mayday!' Seconds later the jet began losing height and exploded into a fireball after smashing into a hostel on the ground in Gujarat, claiming the lives of all but one passenger on board and 19 people on the ground. Investigators' early assessments indicate no apparent fault with the Boeing or its engines, suggesting that Boeing and engine maker GE had no apparent responsibility for the accident. But the report does not say how the switch - which is used to start or shut down the engines and are typically left on during flight - could have flipped to the cutoff position. 'Did they move on their own or did they move because of the pilots?' he asked. "And if they were moved because of a pilot, why?' The report said the jet was carrying 54,200kg of fuel, which was within the 'allowable limits'. '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 report said. 'The Engine N1 and N2 began to decrease from their take-off values as the fuel supply to the engines was cut off. Referring to data recovered from the plane's two Enhanced Airborne Flight Recorders (EAFR), it continues: '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.' U.S. aviation safety expert John Cox said a pilot would not be able to accidentally move the fuel switches that feed the engines. 'You can't bump them and they move,' he said. The new findings appear to tally with theories reportedly put forward on the US side of the investigation, which also noted that the switches that control fuel flow to the aircraft's twin engines were turned off shortly after takeoff, causing the jet to lose thrust. It remains unclear why they were turned off, and investigators have been left wondering whether it was deliberate, accidental or corrected too late. Earlier this week, it was revealed that investigations into the Air India plane crash are looking into the pilots' medical records as it is claimed one of them had depression and mental health issues. Captain Sumeet Sabharwal, an experienced pilot with more than 8,200 hours in the cockpit, was piloting the Boeing 787 Dreamliner when it plummeted. Captain Mohan Ranganathan, a leading aviation safety expert in India, has revealed that 'several' Air India pilots had allegedly confirmed that the well-experienced pilot had suffered from poor mental health. Speaking to The Daily Telegraph, he claimed: 'He had taken time off from flying in the last three to four years. He had taken medical leave for that. Captain Sabharwal is also understood to have taken bereavement leave after the death of his mother, though it is believed by Mr Ranganathan that he had been 'medically cleared' by Air India prior to the fatal crash last month. In Powai, Mumbai, one of Captain Sabharwal's former colleagues described him as a 'thorough gentlemen' telling the publication that he believed 'he was actually considering early retirement in the next couple of years', with plans to look after his elderly father, aged 90. In his short career, co-pilot Clive Kunder, 28, had logged more than 3,400 hours. The Telegraph said that while Air India declined to comment, an official working with their parent company, Tata Group, told the publication that Captain Sabharwal had not taken any medical leave, with the preliminary report failing to obtain any significant findings. They added that within the last two years, both pilots onboard the flight had passed the Class I medical exam, which makes an evaluation of their psycho-physical capabilities.

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