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indication of an engine fuel leak:
FUEL BALANCE switch. . . . . . . . . . . . . . . . . . . . . . . . PUSH
Push and hold for 1 second.
[Initiates automatic fuel balancing.]
Condition: Both center fuel pump switches are OFF with fuel in
the center tank.
[]FUEL IMBALANCE
FUEL IN CENTER
December 15, 2006
787 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D615Z003 Boeing Proprietary
12.6
12.6
Condition: Jettison nozzle valve is not in the commanded
position.
Condition: Fuel jettison is required.
FUEL JETTISON ARM switch. . . . . . . . . . . . . . . . . . . .ARMED
If desired FUEL TO REMAIN different than displayed FUEL
TO REMAIN:
FUEL TO REMAIN selector. . . . . . . . . . PULL, set manually
FUEL JETTISON NOZZLE switches (Both). . . . . . . . . . . . .ON
Do not accomplish the following checklists:
FUEL PUMP CENTER L
FUEL PUMP CENTER R
When fuel jettison complete:
FUEL JETTISON NOZZLE switches (Both). . . . . . . . . .OFF
FUEL JETTISON ARM switch. . . . . . . . . . . . . . . . . . . . .OFF
Condition: Fuel jettison from main tanks is inoperative.
Fuel jettison can occur only from the center tank.
Do not complete the following checklist:
FUEL JETTISON
When center tank empty or FUEL TO REMAIN quantity
reached:
FUEL JETTISON NOZZLE switches (Both). . . . . . . . . .OFF
FUEL JETTISON ARM switch. . . . . . . . . . . . . . . . . . . . .OFF
FUEL JETT NOZZLE L, R
U FUEL JETTISON
[]FUEL JETTISON MAIN
December 15, 2006
787 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D615Z003 Boeing Proprietary 12.7
12.7
Condition: Fuel jettison system is inoperative.
FUEL JETTISON NOZZLE switches (Both). . . . . . . . . . . .OFF
[Closes fuel jettison nozzle valves.]
FUEL JETTISON ARM switch. . . . . . . . . . . . . . . . . . . . . . .OFF
[Disarms fuel jettison system and removes TO REMAIN quantity from
EICAS.]
Do not complete the following checklist:
FUEL JETTISON
[]FUEL JETTISON SYS
December 15, 2006
787 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D615Z003 Boeing Proprietary
12.8
12.8
Condition: An in flight fuel leak is suspected or confirmed.
One or more of the following may be evidence of a fuel leak:
• visual observation of fuel spray from strut/engine
• excessive engine fuel flow
• total fuel quantity decreasing at an abnormal rate
• FUEL DISAGREE message on EICAS
• FUEL IMBALANCE message on EICAS
• FUEL QTY LOW message on EICAS
• INSUFFICIENT FUEL message on EICAS.
CENTER FUEL PUMP switches (Both). . . . . . . . . . . . . . . .OFF
CROSSFEED switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
BALANCE switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
Identify an engine fuel leak by observing a left or right main
fuel tank quantity decreasing faster than the other.
An increase in fuel imbalance of approximately 1000 lbs or
more in 30 minutes should be considered a fuel leak.
Conditions permitting, visually check for engine fuel leak.
If left and right main tank quantities decrease at same rate:
Fuel leak may be from center tank to center wing area. Do
not use center tank fuel.
If FUEL DISAGREE message displayed:
PROGRESS page 2. . . . . . . . . . . . . . . . . . . . . . . . . Select
CALCULATED. . . . . . . . . . . . . . . . . . . . . . . . . .Select use
Use CALCULATED to determine gross weight.
Destination fuel estimate. . . . . . . . . . . . . . . . . . . . . CHECK
Verify adequate fuel available in left and right main
tanks to complete flight.
Continued on next page
U FUEL LEAK
December 15, 2006
787 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D615Z003 Boeing Proprietary 12.9
12.9
Continued from previous page
If engine fuel leak confirmed:
AUTOTHROTTLE ARM switch
(Affected engine). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
[Allows thrust lever to remain where manually positioned.]
Thrust Lever (Affected engine). . . . . . . . . . . . . . . . . . Close
[Assists in recognition of affected engine.]
FUEL CONTROL switch
(Affected engine). . . . . . . . . . . . . . . . . . . . . . . . . . . CUTOFF
APU selector
(If APU available). . . . . . . . . . . . . . . . . . . . .START, then ON
[Provides an additional source of electrical power.]
Transponder mode selector. . . . . . . . . . . . . . . . . .TA ONLY
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787QRH快速检查单(51)
