Fuel supply is cross-fed while fuel is there in fuselgae, left wing, right ring.
There seem to be 6 pumps.
So it is not possible to cut fuel via pumps to both engines.
Nothing can be more pathetic than his rant.
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BTW I am now inclined towards a sophisticated sabotage theory. Whatever it was (I think a controlled explosion inside the avionics bay), it killed the engines. The rest was a cascading effect.
Planting small controlled explosive there would be unique terror attack so far in history.
But those bays are quite big & have hell lots of different types of equipments + adjacant fuel tanks.
By now every person who last worked on each part of AI171 would have been questioned or under enquiry, subjected to travel restrictions.
The aft equipment bay or forward avionics bay are most sensitive & secured.
Not just any technician can access whenever they wan't.
Pre-planned authorised schedule would be there to access them with vigilance & documentation.
Hangars have CCTV.
CISF guards are there.
Lots of checks & tests can be done from cockpit itself.
The staff may have to go through physical search like passengers.
Boeing 787 Aft Equipment Bay
View: https://www.youtube.com/watch?v=r7fPHEUWeLs
Boeing 787: A tour through the brain of the airplane
View: https://www.youtube.com/watch?v=wDeQ88Z_9Pk
Boeing 787 Main Equipment Bay
View: https://www.youtube.com/watch?v=z7kiWrLah10
B787 fwd and aft equipment bay (avionics bay)
View: https://www.youtube.com/watch?v=BkpLEuCGW8k
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Supplying electricity to engine means to its EEC (Electronic Engine Control). The jet engine is a mechanical combustion engine, it doesn't need electricity to turn the spools but air & fuel.
From design PoV, 1x GenX-1B like engine can produce like 2x250 KW for entire jet, so
if engine electricity are cut out via central bus then also the generators should directly feed the engines instead of 1st going to central bus & returning.
The
EEC has its own PMA (Permanent Magnet Alternator) if it doesn't get power from generator.
It would be logical to separate the electricity cables & electronic data cables, so that the FMC can continue to instruct the EEC to run the engines.
