Air India 787 crashes on take off 8

[LittleInch]

A full 787-8 has crashed shortly after take off in ahmedabad.

Basically barely got off the ground then look like its trying to land in this video.

Air India ordered to carry out ‘additional maintenance actions’ on Boeing 787-8/9 fleet – as it happened

India’s ministry of civil aviation orders airline to carry out safety inspections on fleet with GE Aerospace GEnx engines after crash of flight 171

www.theguardian.com

Specualtion that they pulled flaps up instead of gear up and basically didn't have enough lift so it looks like a gentle stall right into a built up area.

Looks to be flaps up, slats/ nose flaps down and gear down which is very odd.

 

[Alistair_Heaton]

Cockpit video has always been apposed by various western pilot unions.

The long length cockpit voice recorder's are still apposed mainly in the USA.

Personally I really don't care...

The knee jerk imposition of additional medical checks is more of a concern.

 

[LittleInch]

Cockpit video has always been apposed by various western pilot unions.

The long length cockpit voice recorder's are still apposed mainly in the USA.

Personally I really don't care...

The knee jerk imposition of additional medical checks is more of a concern.

Why?

Surely it's good for the pilot community to know what happened rather than pure guess work or speculation.

 

[TugboatEng]

If the FDR is logging at 1hz a simultaneous movement (a few ms of separation) may appear as one switch moved after another or that ms split straddles a measurement point.

 

[LittleInch]

If the FDR is logging at 1hz a simultaneous movement (a few ms of separation) may appear as one switch moved after another or that ms split straddles a measurement point.

True, but equally it could mean the switches were moved one at a time 1.9 seconds apart.

Not sure what is to be gained by thinking these were "simultaneous". They were close enough that both engines basically shut down at the same time, hence no visible yaw.

The issue of timing for me is crucial. If this was indeed a deliberate act to crash the plane then three seconds after lift off was spot on. Not too early so that it was possible to abort / land the plane on the runway or inside the airport, but not too late so that the landing gear was still down creating drag and not enough time / altitude / speed for any APU to start or relight of the engines if fuel control switches moved back to run.

IF it was deliberate it was actually well planned and thought out.

If it was not designed to happen then it was one of the Swiss cheese holes aligned. Five / ten seconds earlier or five , maybe 10 seconds later you might not have had such a total disaster.

 

[TugboatEng]

The importance of the simultaneous switch is that it may be an indication of an intentional or unintentional action. If the locks were not in place and a pilot accidentally brushed the switches that would be nearly simultaneous switch while lifting and operating each switch intentionally may take more time.

 

[BrianPetersen]

Having watched this type of switch being actuated on video, roughly a second apart looks about right for what one person doing each switch one at a time would take.