zeroairspeed Posted June 5, 2009 Report Share Posted June 5, 2009 Seems to be a difference of options on if you put to boost pumps on to do your fuel drain first thing. I was under the understanding that they should be OFF. As you are recirculating the fuel if you have them ON and mixing the fuel and water (if any) and will not get a good read on it. But, in the Supplement for the A/F fuel filter. It states, Boost pumps ON. In the pre-flight in the FM. it dos'nt state to do any fuel drain. Know on other machines, fuel is not recirculated, just pressured up. thoughts Quote Link to comment Share on other sites More sharing options...
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