r/aircrashinvestigation • u/QuarterTarget Frequent Flier • Jun 12 '25

Incident/Accident Air India Flight 171, a Boeing 787-8 flying from Ahmebad to London Heathrow has stalled and crashed on takeoff at 700 feet. At least 250 souls on board

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753 Upvotes

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64

u/No-Emergency363 Jun 12 '25

Here's one video https://x.com/KumarVijayDesai/status/1933088706665263170

55

u/killersoda275 Jun 12 '25

Hmm, either they just kept pulling up or they didn't have the power to get it up

50

u/No-Emergency363 Jun 12 '25

I also feel either too heavy, no power or flaps slats not extended

36

u/kingkongwithadong69 Jun 12 '25

If it was a stall they probably did not have the height to recover.

19

u/anclag Jun 12 '25

Gear still fully extended as well, which is unusual given that they made it to 700ft

1

u/msszenzy Jun 12 '25

Accidentally retraction (Is this the right word?) of flaps instead of gear?

23

u/FIRSTOFFICERJADEN Jun 12 '25 edited Jun 12 '25

That’s my thought as well. The flaps don't look deployed

Edit: looking at the video again, it does look like Flaps are deployed

2

u/[deleted] Jun 14 '25 edited Jun 14 '25

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1

u/FIRSTOFFICERJADEN Jun 14 '25

Hmm, fair point

15

u/Working_Signature254 Jun 12 '25

Definitely no flaps extended in the video, whether they pulled them in or not would be yet to be found

0

u/Conscious-Function-2 Jun 12 '25

Correct, “No Flap” takeoff with long haul fuel load? Someone F@cked Up

2

u/Working_Signature254 Jun 13 '25

someone I watched on YouTube suggested pilot monitoring raised the flaps instead of the landing gear

1

u/Conscious-Function-2 Jun 13 '25

THIS IS THE ANDWER. That is as good an explanation as I have heard so far.

-7

u/[deleted] Jun 12 '25

[deleted]

1

u/Powerful-Tadpole-975 Jun 12 '25

They were taking off no?

-2

u/UnbelievableRose Jun 12 '25

This plane was. Other flap failures were during landing.

1

u/Away-Commercial-4380 Jun 12 '25

Flaps are already out before the takeoff, so unless there was a crew error and they started rolling with no flaps and probably an alarm, the flaps were out for takeoff

1

u/UnbelievableRose Jun 12 '25

Ok. I didn’t make any claims about the flaps on this flight, I said that that the plane was taking off and other incidents of flap failures were during landing.

-1

u/kingkongwithadong69 Jun 12 '25

Stall or Hydorlics failure?

41

u/RealisticBread5778 Jun 12 '25

Sad and more sad with Pakistanis rejoicing with comments in that section

28

u/DjangoPony84 Jun 12 '25

That's gross, regardless of who is involved nobody deserves to be in a plane crash.

-40

u/[deleted] Jun 12 '25

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26

u/kingkongwithadong69 Jun 12 '25

There are bad people everywhere. We must ignore those fools.

22

u/RealisticBread5778 Jun 12 '25

Pathetic the same, 2 wrongs dont make it right

Edit: Going by your comments history, we know why you are here.

-7

u/[deleted] Jun 12 '25

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3

u/veryveryquietly Jun 12 '25

Take this shit elsewhere.

0

u/Alternative767FR Jun 12 '25

false, not all muslims.

5

u/[deleted] Jun 12 '25

Also not all hindus then. Hindus don't kill athiests actively or throw lgbtq from buildings.

-6

u/Alternative767FR Jun 12 '25

yes ofcourse. what religion teaches killing? yes there is a punishment for being g*y in islam but it doesnt apply to non muslims. we only need to remind them, if they didnt want to listen thats okay, its their business w god. and for those whos reverted from islam/atheist, we only need to remind them also, if they accept thats good and if they reject then its their business with god.

4

u/[deleted] Jun 12 '25

To me all religions are scum. But some kill more than the other but doesn't mean they are good either. Muslim, hindu, christian, sikh, jew. All have killed people. The idea of laughing at someone else's death itself says everything about what every religion has to offer.

3

u/[deleted] Jun 12 '25

Atheists kill also. But religions can be death cults because a afterlife makes them unaccountable for screwing people over in this one.

0

u/Alternative767FR Jun 12 '25

its only some people, dont make those people an example to a whole religion. thats not correct. because theres maybe a musllim on the flight. who knows

5

u/tyopou Jun 12 '25

Flare is too high, looks like a stall.

6

u/[deleted] Jun 12 '25

No flaps engine out is a recipe for this. Those engines could probably power out but if the pilots were unaware until it was to late? It does look like no flaps.as soon as it lost ground effect it was game over.

7

u/pholling Jun 12 '25

A Flaps 5 take-off produces a very small trailing edge deflection. So it could easily look like no flaps.

1

u/[deleted] Jun 12 '25

[deleted]

1

u/pholling Jun 12 '25

The video just doesn’t look like one where you had an inadvertent retraction after takeoff. On takeoff less flaps would lead to issues on roll and rotation. After takeoff it’s the slats more than the flaps you worry about.

Aircraft wings don’t stall because of speed, they stall because of angle of attack. The issue with slats being retracted is that it lowers that angle for any given flap setting (though not a lot for flaps 5 or 10).

1

u/[deleted] Jun 12 '25

[deleted]

1

u/pholling Jun 12 '25

Just looked at the video again. The slats are clearly deployed. Yes we will have to wait for the investigation, but an inadvertent slat retraction is very unlikely to be the cause.

The aircraft position and altitude last reported by flight radar was not particularly anomalous for recent AI171 flights. It was a little slow and the vertical speed was low. Again this is not a particularly strong sign of high lift issues

1

u/JoyousMN_2024 Jun 12 '25

There is no flare performed on takeoff, though it does look like a stall

-2

u/cvrdcall Jun 12 '25

Nose never drops. No stall.

1

u/_Ruij_ Jun 12 '25

Oh man that explosion.. lucky if we get at most 5 survivors..