Can fuel pump switching be ruled out due to;
a) nitrogen inerting (not sure if it had it)
b) fuel load being such that it wouldn't have been required at that stage of flight.
c) Aircraft was too new to have the faulty wiring/pump or whatever it was that caused centre tank explosions in the past.
I can confim that the a/c did NOT have N2 Generation system installed, couldn't comment on the fuel load, and Mods had been c/out to improve the the Tank Issues per Boeing SB/SL/AD. All to the highest standards.