Posts about: "Engine Failure (All)" [Posts: 410 Pages: 21]

I was wondering about that, I 'assumed' it was dust, but potentially could be smoke? Supposedly a passenger said there was a loud bang, and the timing could be about right?

Looks to me like the plane yaws to the right just after takeoff, and puff of dust only on the left side of the plane. Right engine failure?

Aerodynamically it would fit with taking off without flaps - normal rotation and climb until clear of ground effect at around 200ft at which point the lift would drop a lot. It\x92s not a single engine failure as no sign of yaw.

hasn\x92t every jet had a take off configuration warning for about 30 years now? Surely the 787 has something far more advanced than that (electronic checklists) as well as airlines having various SOPs to catch that. Retracting flaps instead of gear is plausible (but as I said above doesn\x92t really align with the apparent mayday call they got out) but taking off with zero flaps would be unthinkable for anything as modern as a Dreamliner surely

Are you suggesting a load shifting?

.... or a software failure. (ANa flight NH985)

Considering the RAT is 100% out as evidenced from footage both visually and audibly; the initial conclusion can only be both engines have failed, or one failed, and the other unfortunately shut down.

I'm not convinced the RAT is out. I've looked several times and can't see it on any of the videos.
Happy to be corrected.

Ridiculous. The jet's only been airborne a few seconds... do you really think they would have had enough time to shut down the wrong engine? Do you fly?

Agree 10000% this is what I feel the most likely thing is. No indication of engine failure, no indication of bird strike, no indication of Ram Air deployed (would it even have time to deploy? The plane crashed like 30 seconds after take off) The take off run was way long, low power/flaps misconfig. I think we will find the reason out very quickly.

Nonsense. Please don\x92t post things as fact that are just speculation.

Absolutely. I just have no idea however how Air India train their persons to do memory items. Our brains can do very interesting things in stressed times, which as an experienced skipper I\x92m sure you\x92ll be aware of

The entire flight from rotation to impact was 30 seconds. Is it even possible to complete an engine shutdown in that time?

You certainly should try that\x92s for sure. ANC and all that good stuff! In a panic it certainly is possible to just pull the wrong one. I\x92m not saying that\x92s what\x92s happened, to me it seems like dual engine failure, practically simultaneously.

It looks like an action slip to me as the timing looks right ie \x93positive rate \x93 \x93gear up\x94 (someone raises the flaps instead of the gear) PF is looking through the HUD so just sees someone move their hand rather than the hand moving the correct lever

It\x92s then taking off heavy weight with 35c and the flaps have been raised and the gear is still down.

As nobody realised the flaps had been raised instead of the gear when it happened they automatically think it\x92s some other issue as the aircraft loses lift and the amber band rapidly rises and the aircraft runs out of lift.

could be something else like fuel or 2 engine failure but seems possible it\x92s an action slip also.

I didn\x92t see the RAT deployed but saw the gear down still and an aircraft fall out of the sky with what sounded like engines running still.

No the plane barely took off the runway, low power setting/bad flaps. Unless you are saying a double engine failure before take off but seriously how likely is that? It's much more plausible to mess up the take off settings we have seen it many times before. But I think we will find out soon, no need to speculate too much.

But why is the RAT extended? Any 787 drivers able to confirm under what conditions the RAT automatically deploys?

Ok, so...

Some have said the RAT appears to have been deployed. This would suggest a hydraulic/electrical failure on the plane.

A hydraulic/electrical failure could well make it impossible to retract the gear immediately.

But, what do flaps do in the event of a major hydraulic/electrical failure? Is there a default that they revert back to?

We can, I think, rule out engine failure, at least single engine failure because the rudder is still straight on in the
Video. You can also hear the engines..

You are saying the RAT is deployed but we can rule out engine failure?

I thought this was meant to the *professional* pilot\x92s forum

Its like the lift was sucked out of it! Looks like a overloaded 172 trying to climb out a valley towards rising mountains on a hot summers day.

Was the take off weight entered wrong? rotate too soon and nurse it along? The rotate and initial climb looked normal for the first couple hundred feet though

What could cause a loud bang on climb out?

- Compressor stall
- Engine failure
- Load shift in aft cargo hold

It really is a mystery

787 drivers - How would autothrust typically function? What would an impaired airspeed indication/sense look like?