Air India crash report shows pilot confusion over engine switch movement

Ammon

3 days ago

Ammon News - A preliminary report depicted confusion in the cockpit shortly before an Air India jetliner crashed, killing 260 people last month, after the plane's engine fuel cutoff switches almost simultaneously flipped, starving the engines of fuel.
The Boeing 787 Dreamliner bound for London from the Indian city of Ahmedabad immediately began to lose thrust and sink down, according to the report on the world's deadliest aviation accident in a decade released on Saturday by Indian accident investigators.
The report by India's Aircraft Accident Investigation Bureau (AAIB) about the June 12 crash shortly after takeoff raises fresh questions over the position of the critical engine fuel cutoff switches, while suggesting that Boeing and engine maker GE had no apparent responsibility for the accident.
The crash is a challenge for Tata Group's ambitious campaign to restore Air India's reputation and revamp its fleet, after taking the carrier over from the government in 2022.
Almost immediately after the plane lifted off the ground, CCTV footage shows a backup energy source called a ram air turbine had deployed, indicating a loss of power from the engines.
In the flight's final moment, 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 said.
It did not identify which remarks were made by the flight's captain and which by the first officer, nor which pilot transmitted "Mayday, Mayday, Mayday" just before the crash.
The commanding pilot of the Air India plane was Sumeet Sabharwal, 56, who had a total flying experience of 15,638 hours and, according to the Indian government, was also an Air India instructor. His co-pilot was Clive Kunder, 32, who had 3,403 hours of total experience.
The fuel switches had almost simultaneously flipped from run to cutoff just after takeoff. The preliminary report did not say how the switches could have flipped to the cutoff position during the flight.
Experts have said a pilot would not be able to accidentally move the fuel switches.
"If they were moved because of a pilot, why?" asked U.S. aviation safety expert Anthony Brickhouse.
The switches flipped a second apart, the report said, roughly the time it would take to shift one and then the other, according to U.S. aviation expert John Nance. He added that a pilot would normally never turn the switches off in flight, especially as the plane is starting to climb.
Flipping to cutoff almost immediately cuts the engines. It is most often used to turn engines off once a plane has arrived at its airport gate and in certain emergency situations, such as an engine fire.
The report does not indicate there was any emergency requiring an engine cutoff.
The AAIB, an office under India's civil aviation ministry, is leading the probe into the crash, which killed all but one of the 242 people on board and 19 others on the ground. Reuters