AIRPLANE
OPERATIONS
MANUAL
GROUND SERVICING
REVISION 38
1-12-25
Page
5
Code
04
AOM-145/1114
After the defueling operation is completed, the defueling valve must be
removed from the defueling port, and the defueling cap must be
closed.
FUEL TANK DRAINING
Fuel tanks must be drained periodically to remove free water and
contaminants from the tank bottom, on intervals no longer than 100 FH
or 7 calendar days, whichever occurs first.
To drain, place a flask below the draining device. To open the drain
valve, insert the draining device in the valve and turn it one-quarter of
turn. Close the access panels after the draining is completed.
EM145AOM121009A.DGN
DRAIN VALVE
TRANSPARENT
GLASS FLASK
DRAINING
DEVICE
L( ) MODELS
E( ) MODELS
FUEL DRAINING POINTS
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