OVRD PUMPs on 744
Simple question:
Transitioning to phase 3 of fuel logic on the 744 upon receiving FUEL TANK/ENG, when one must go to each engine being fed by its own MAIN tank and switch off (generally speaking, I've read online that some do not for various reasons, discuss amongst yourselves) the crossfeed valves, what happens if you do not press off the OVRD PUMP switches (FWD and AFT) for tank 2 and 3 (considering they were currently feeding 1, 2, 3 and 4)?
It appears that fuel is still fed from the MAIN 2 and 3 via the OVRD pumps rather than the main tank. Would this result in 2 and 3 flame out or just more strain on the overide? I can't quite work it out.
Thanks in advance!