Air India 787 crashes on take off 2

[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 flight to London Gatwick crashes in Ahmedabad with more than 240 people onboard – latest updates

Plane for flight AI171 was carrying 242 people including 169 Indians and 53 Britons, says Air India

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.

 

[LittleInch]

I've been on that page for a while now as well.

 

[Garbage1]

I have read default position for Fuel Shutoff Valves (FSOVs) is the off position. Therefore complete loss of electrical power automatically shuts fuel off to both engines (perhaps spring loaded to auto close) RAT would take some time (say couple seconds) to deploy and provide power after deploying, and engines already shut down with no altitude/time to start back up.

They went on to say Airbus has battery backup power for fuel valves, but not 787.

 

[LittleInch]

But what was the Original failure?

Ï I've seen that the badly burnt front unit was henning sent to NTSB in the UD as this might have data after the assumed dual engine shutdown.

 

[Garbage1]

But what was the Original failure?

Ï I've seen that the badly burnt front unit was henning sent to NTSB in the UD as this might have data after the assumed dual engine shutdown.

Don't know, perhaps once Captain Steve gets past his latest video on "Vapor Lock" we will find out........


In reading the following, u would expect main battery to be first backup to electical power loss, and you would think backup design would keep fuel valves open. Now did main battery also fail or did electrical failure take it out of loop?


The 787 Dreamliner has two primary rechargeable batteries – the main and auxiliary power unit (APU). While identical part numbers, they serve separate purposes.

The main battery “powers up” aircraft systems, bringing the airplane to life before the engines have been started. Once the engines are started, the electrical energy to run the systems comes from generators. It also is used to support ground operations such as refueling and powering the braking system when the airplane is towed. The main battery also provides backup power for critical systems during flight in the extremely unlikely event of a power failure. It is located in the forward electronics equipment (EE) bay, which is under the main cabin floor at the front of the airplane.

The APU battery supplies power to start the APU, which in turn can start the airplane engines. The APU, and its battery, also serves as part of the multiple layers of redundancy that would ensure power in the rare possibility of a loss of primary sources of power.

 

[TugboatEng]

I wonder what the replacement interval is for the batteries? The airframe age is right around the life expectancy of a lithium ion battery.

What is the response to a fire in the after electrical equipment bay?

 

[Alistair_Heaton]

Response is getting on ground asap.

Here is my valves which are open all the time normally.