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7/14/2025, 2:09:06 AM
>>2048516
>did they actually find the switch intact in wrong position or is black box telling them the switches where pressed?
They were found in RUN, but the timeline is as follows:
>08:08:39: Aircraft achieves liftoff
>08:08:42: Aircraft reaches highest recorded airspeed, 180kts. Engine 1 fuel cutoff transitioned from RUN to CUTOFF
>08:08:43: Engine 2 fuel cutoff transitioned from RUN to CUTOFF.
>08:08:47: RAT begins supplying hydraulic power
>08:08:52: Engine 1 fuel cutoff switch transitioned from CUTOFF to RUN
>08:08:54: APU Inlet door opens, consistent with the APU Auto Start logic
>08:08:56: Engine 2 fuel cutoff switch transitioned from CUTOFF to RUN
>08:09:05: Radio transmission: "MAYDAY MAYDAY MAYDAY"
>08:09:11: Flight data recording stops
>Note: The EGT was observed to be rising for both engines indicating relight. Engine 1’s core deceleration stopped, reversed and started to progress to recovery. Engine 2 was able to relight but could not arrest core speed deceleration and re-introduced fuel repeatedly to increase core speed acceleration and recovery.
>did they actually find the switch intact in wrong position or is black box telling them the switches where pressed?
They were found in RUN, but the timeline is as follows:
>08:08:39: Aircraft achieves liftoff
>08:08:42: Aircraft reaches highest recorded airspeed, 180kts. Engine 1 fuel cutoff transitioned from RUN to CUTOFF
>08:08:43: Engine 2 fuel cutoff transitioned from RUN to CUTOFF.
>08:08:47: RAT begins supplying hydraulic power
>08:08:52: Engine 1 fuel cutoff switch transitioned from CUTOFF to RUN
>08:08:54: APU Inlet door opens, consistent with the APU Auto Start logic
>08:08:56: Engine 2 fuel cutoff switch transitioned from CUTOFF to RUN
>08:09:05: Radio transmission: "MAYDAY MAYDAY MAYDAY"
>08:09:11: Flight data recording stops
>Note: The EGT was observed to be rising for both engines indicating relight. Engine 1’s core deceleration stopped, reversed and started to progress to recovery. Engine 2 was able to relight but could not arrest core speed deceleration and re-introduced fuel repeatedly to increase core speed acceleration and recovery.
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