Re: OT: air india crash

alan_m · 2025-06-16T11:13:47+00:00

The more informed speculation from pilots who fly the plane suggest dual engine failure as the best guess.The RAT (Ram Air Turbine) was automatically deployed based on audio in the better quality original video (not the second hand copy shown on TV and most of Youtube)The flaps were deployed - and the aircraft should have had enough power to fly/climb if the flaps were in the wrong position.The landing gear had been tilted for retraction. The gear is tilted from the takeoff/landing position prior to retraction to get it through the door opening. The RAT cannot supply enough hydraulic power to lift the gear and gravity keeps it down.

Jun 16, 2025 Last reply: 1 year ago 227 Replies

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tony sayer 1 year ago

Have you got a Youtube ref for that, the very few I've found aren't that informative!..

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tony sayer 1 year ago

The part number given by Boeing for the Honeywell part is this

4TL837-3D

If this link opens it will give you al you need to know and a lot more of that series of switches!..

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The Natural Philosopher 1 year ago

Yes, that shows the correct switch amongst 3 others...

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The Natural Philosopher 1 year ago

formatting link

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Rod Speed 1 year ago

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Agreed

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Vir Campestris 1 year ago

I have seen trains in North America (forget whether USA or Canada) where there are some locos at the front, then a couple more further down the train.

Andy

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Vir Campestris 1 year ago

A sensible post from Speed? Is he growing up?

(I have him blocked)

Andy

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Marland 1 year ago

It eases the stress on the wagon couplings to distribute the power along their long trains.

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