MD-11 Flight Crew Operations Manual
k
Fuel -
Alerts
Fuel.40.4
FSC MODE FAULT (FUEL) - Operating mode or mode selection
(auto/manual) disagree between processors.
FUEL CONTAMINATED (FUEL) - Two or more fuel filters are clogged,
fuel may be contaminated.
FUEL DUMP ON (FUEL) - DUMP switch is in the ON position.
FUEL LRU INOP (MAINT) - Maintenance has deactivated a fuel system
component. The FSC will compensate in the auto mode.
FUEL MANF DRAIN (FUEL) - Fuel manifold drain has been commanded,
either automatically by FSC, or manually by the crew pushing the MANF
DRAIN switch.
FUEL QTY 2 DISAG (FUEL) - There is a discrepancy in the tank 2 fuel
quantity indication. This alert appears if the fuel quantity measurement
disagrees with the position of the 4,536 kilogram float in the tank.
NOTE: If the aircraft has a right wing down ground attitude, this alert
may appear with a normally functioning float switch and fuel
quantity system at quantities below 7,258 kilograms in Tank 2.
FUEL QTY TST FAIL (FUEL) - The fuel quantity test has failed.
FUEL SYS MANUAL (FUEL) - Fuel system is in the manual mode.
FUEL SYS TST FAIL (FUEL) - Automatic fuel system preflight test has
failed.
FUEL TEMP FAIL (FUEL) - The wing or tail fuel tank temperature sensor
is inoperative.
FUEL TEMP LO (FUEL) - The tail and/or wing fuel is within 3°C of the fuel
freeze value (or colder).
FUEL VALVE FAULT (FUEL) - Either the tail fill isolation valve, the aux
fill isolation valve, or the left or right outboard fill/manifold drain valve
is inoperative. The FSC may be operated in the auto mode, however, tail
fuel management may be affected.
FUEL XFEED1/2/3 DISAG (FUEL) - Tank 1, 2, or 3 fuel crossfeed valve is
failed open or closed.
SEL FUEL SYS MAN (FUEL) - The fuel system has reverted to manual
mode but the FUEL SYSTEM SELECT switch is in the auto position.
October 02, 2006
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