The preliminary investigation revealed that fuel control switches were turned from 'run' to 'cutoff' just after takeoff, leading to a loss of engine thrust. The switches were returned to the 'run' position moments later, but the aircraft could not regain altitude. A cockpit voice recorder captured one pilot questioning the fuel cutoff, while the other denied having turned off the switches. The report did not identify how the switches were flipped or recommend changes to Boeing, noting design precautions that prevent accidental movement.
Fuel control switches were switched from 'run' to 'cutoff' before an Air India plane crashed last month, resulting in a loss of thrust shortly after takeoff.
Shortly after takeoff, as the Boeing 787-8 Dreamliner reached its top speed, the Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to CUTOFF position one after another.
A cockpit voice recording indicated confusion among the pilots, one asked why the fuel was cut off, and the other insisted he had not done so.
Despite the aircraft losing altitude quickly, efforts to regain engine power after the switches were flipped back to run were insufficient, leading to the crash.
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