737 Flight Crew Operations Manual
Supplementary Procedures -
Airplane General, Emer. Equip.,
Doors, Windows
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
SP.1.4 D6-27370-866-EGP
Fuel Crossfeed Valve Check
Unless accomplished by maintenance personnel prior to the ETOPS
flight, do the following steps on the ground prior to engine start:
Crossfeed selector ................................................................. Open
Verify that the VALVE OPEN light illuminates bright, then dim.
Crossfeed selector .................................................................Close
Verify that the VALVE OPEN light illuminates bright, then
extinguishes.
During the last hour of cruise, do the following steps:
Crossfeed selector ................................................................. Open
Verify that the VALVE OPEN light illuminates bright, then dim.
Crossfeed selector .................................................................Close
Verify that the VALVE OPEN light illuminates bright, then
extinguishes.
September 24, 2015
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