Air India crash

Started by Del., June 13, 2025, 08:24 AM

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mowens

#30
June 16, 2025, 12:14 PM
Quote from: Jeff on June 16, 2025, 09:47 AMWho makes the engines for those planes? Or are there multiple mfg's that Boeing uses?
My only turbine engine "knowledge" is GE and Rolls Royce, but I'm sure there are a few more.

Those are the 2 engines that are offered, as far as I know.
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CNCAppsJames

#31
June 16, 2025, 12:15 PM
I think Pratt and Whitney may have an offering in that class as well. 

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mowens

#32
June 16, 2025, 12:16 PM
Quote from: gcode on June 16, 2025, 11:45 AMI saw an article this morning stating the co-pilot made a critical (and fatal) error
immediately after takeoff. The article was a little light on details and was published by a never heard of it
click-bait website so I did not link it here.

That was the theory for a little while but a video with better visual and audio clarity seems to have ruled that out.
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Del.

#33
July 12, 2025, 07:58 AM
They are saying now that the fuel got shut off to both engines. Voice recorder says pilot asked the co pilot why he shut off fuel and copilot says, he didn't.
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Incogneeto

#34
July 13, 2025, 11:12 AM
Quote from: Del. on July 12, 2025, 07:58 AMThey are saying now that the fuel got shut off to both engines. Voice recorder says pilot asked the co pilot why he shut off fuel and copilot says, he didn't.

Not being a smart ass.

Reminds me of John Denver and his crash. Fuel lever was just out of reach.

These guys had maybe 5 seconds to correct.

Just not enough time. :(

I've heard they are checking ALL the locks. Boeing FAA have all cleared.

Del.

#35
July 13, 2025, 11:31 AM
Quote from: Incogneeto on July 13, 2025, 11:12 AMNot being a smart ass.

Reminds me of John Denver and his crash. Fuel lever was just out of reach.

These guys had maybe 5 seconds to correct.

Just not enough time. :(

I've heard they are checking ALL the locks. Boeing FAA have all cleared.

They did restart one engine but it was too late.
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Incogneeto

#36
July 13, 2025, 11:40 AM
Quote from: Del. on July 13, 2025, 11:31 AMThey did restart one engine but it was too late.

Yea , I heard it restarted at Idle . Not Full thrust which is what they needed.

And the second was trying a second time to restart.

Had to do with that thingy Prop that kicks out.

By the time the pilot said "Why did you shut off the fuel" and he responded "I Didn't" They were done. :(
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gcode

#37
July 14, 2025, 02:38 AM
Aviation Week

QuoteLiftoff was at 13:38:39 local time as recorded on the EAFR via the 787's air to ground sensors transitioning to "air" mode.

Evidence from the wreckage and the EAFR showed its flaps were set at flaps 5, "consistent with a normal takeoff flap setting," AAIB said. The thrust handles were found in the idle position, but EAFR data show they were forward, at takeoff thrust, "until impact," the report said.

The 787 was climbing at 180 kt. when the fuel cutoff switches were toggled at 13:38:41. The engines immediately began to lose power.

Within 10 sec. both switches were toggled back on, triggering an automatic engine relight sequence by the 787's full authority digital engine control (FADEC) system.

"The [engine gas temperature] was observed to be rising for both engines indicating relight," the report said. "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."

The engine cutoff sequence triggered the 787's backup power. Its ram air turbine was deployed within seconds and began supplying hydraulic power at 13:38:47. This prevented the landing gear from being retracted, as the RAT's available power is directed to more critical flight controls.

Its auxiliary power unit began an auto-start process. Despite the FADEC's work and the automatic back-up power, recovery was not possible
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