Planning landing at Heathrow with 30 min in the tanks is legal and would justify the official statement “
adequate fuel”.
It would also justify (
if officially confirmed in a coming update … !?) that crossfeed was open and flaps limited at 20, in order to follow a probable requested low fuel procedure
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An open crossfeed
could justify than both engines took fuel from the same wing tank, and therefore, as officially stated, one eng had to wait 8 sec longer than the other one to develop identical symptoms.
A few questions:
1- As I understand it, a low fuel procedure would request a crossfeed to be open and
ALL fuel pumps selected ON. So what could justify that the engines were maybe not taking fuel from their own side ?
2- Which fuel quantity does trigger a LOW FUEL EICAS MSG ?
3- Will the AAIB simply publish the actual FOB at the time ???