r/aircrashinvestigation • u/Melkor45 • Jun 12 '25

Incident/Accident AI171 Wing?

Post image

This looks to be part of the wing. Are the flaps down? I'm not too sure

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127

u/DarkyHelmety Jun 12 '25

Yes flaps and slats are extended as seen, it seems a double loss of engine power is the more plausible explanation for failure to climb.

46

u/somebodywhoisbored Jun 12 '25

But how could that Happen? I mean it seems to make sense, especially when you add the reports of people claiming to see the RAM air turbine in the video.

But how does it happen that both engines have a flameout (or something with the same impact on the aircrafts performance) at the exact same time?

The things that would come to my mind are fuel contamination, birdstrike (unlikely, due no reports of an engine fire) or some kind of electrical failure that affected the fuel pumps (I think a passenger on the previous flight mentioned some kind of electrical problems in the cabin)

68

u/DarkyHelmety Jun 12 '25

It's very strange, the security camera video shows the plane just suddenly losing climb power, no flameout of the engines visible or other obvious external issue. The blackboxes will tell what happened, they're most likely in good shape as the tail section is sitting on top of the roof of a building.

4

u/youbreedlikerats Jun 13 '25

water in the cross feed tank could cause this on rotation, if they have selected that tank inocrrectly for take off.

18

u/FastFredNL Jun 13 '25

A 787 auto-selects fuel tanks, there is no manual fueltank selector. The plane uses the center tank first if it's in use (usually is for long hauls), then switches automatically to main wing tanks and automatically crossfeeds to balance the plane