Fuel to the engines of the Air India plane that crashed last month appears to have cut off shortly after take-off, a preliminary report has found.
According to the report switches in the cockpit that controlled fuel moved to a “CUTOFF” position.
It said: “Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to CUTOFF position one after another with a time gap of one second.
“The Engine N1 and N2 began to decrease from their take-off values as the fuel supply to the engines was cut off.”
Image: The crash site. Pic: AAIB
There was then confusion in the cockpit. In the voice recording, one of the pilots is heard asking the other why he “cut off”. The other pilot responds that he did not do so.
There were no conclusions as to how the switches were moved.
One of the engines was able to be restarted, but could not reverse the plane’s deceleration, the report found.
“At this stage of investigation, there are no recommended actions to Boeing 787-8 and/or GE GEnx-1B engine operators and manufacturers,” India’s Aircraft Accident Investigation Bureau (AAIB) said in the report.
Image: A diagram in the report shows how the plane crashed into a building. Pic: AAIB
No significant bird activity was observed in the vicinity of the plane’s flight path, the report said. The aircraft started to lose altitude before crossing the airport perimeter wall, it added.
The plane plummeted into a busy area, killing 241 passengers and 19 others on the ground while incinerating everything around it.
The AAIB’s report is based on the initial findings of the probe, marking 30 days since the crash.
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