Cessna 310 transfer pumps

rogy pogy

Filing Flight Plan
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Jun 8, 2026
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Rogy Pogy
While flying in a 310R, if the fuel transfer pump(s) fail (these are the pumps that transfer fuel from the front of the tank to the center of the tank while in a steep descent), how would I know other than the engine(s) quitting ?
 
Part of a required item of pre-flight is to make sure they’re rattling away with just the battery on. They should both have about the same sound / frequency of pumping sound. If one is distinctly slower than the other, that’s usually a pretty good indication of pending failure.
 
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