Originally Posted by
Rightbase
Ice could possibly delay the onset of scavenge until some time during the descent, then melt away and be scavenged as water.
But if scavenge was still in progress (and maybe sending a big slug of water through to the wings) then CT wouldn't be reading empty.
Quote from Boeing relating to 777-300ER (not exactly the same scavenge arrangement, but might or might not have similar lack of instrumentation - any lurking 777 pilots able to comment or confirm?)
I've read that before also, and I understand it as no
explicit indication / warning of scavenge system failure, not that you couldn't infer it from CT fuel level readings, and I am pretty sure that all 777s have fuel level sensors in
every tank. Happy for any 777 pilot to tell us we're (maybe both) wrong though.