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FUEL JETTISON ARM switch . . . . . . . . . . . . Off
1 FUEL JETTISON NOZZLE
valve switches (both) . . . . . . . . . . . . . . . . . . Off
2 FUEL JETTISON ARM switch . . . . . . . . . . . . . . Off
3 Do not accomplish the following checklist:
FUEL JETTISON
[] FUEL JETTISON MAIN
Condition: The main tank fuel jettison system is failed.
[] FUEL JETTISON SYS
Condition: The fuel jettison system is failed.
Objective: To close the fuel jettison nozzle valves and
disarm the system.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
12.16
12.16
1 Fuel CENTER PUMPS switches (both). . . . . . . .Off
[Auxiliary Fuel Tank]
2 AUX fuel switch . . . . . . . . . . . . . . . . . . . . . .Off
3 FUEL CROSSFEED switches (both) . . . . . . . . .Off
4 Identify an engine fuel leak by verifying that a left
or right main fuel tank quantity is decreasing faster
than the other.
[Metric Units]
5 An increase in a fuel imbalance of approximately
500 kgs or more in 30 minutes should be
considered a fuel leak.
[English Units]
6 An increase in a fuel imbalance of approximately
1000 lbs or more in 30 minutes should be
considered a fuel leak.
7 If conditions allow, visually check for an engine
fuel leak.
8 Choose one:
Continued on next page
Fuel Leak
Condition: An in-flight fuel leak is suspected or
confirmed.
Objective: To verify that there is a fuel leak and shut
down the affected engine, if needed.
Left and right main tank quantities decrease at
different rates:
Go to step 18
Left and right main tank quantities decrease at
the same rate:
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 12.17
12.17
[777-200]
Go to step 9
[777-200ER, 777-200LR, 777-300, 777-300ER]
Go to step 14
[777-200]
9 The fuel leak may be from the center tank to the
center wing area. Do not use center tank fuel.
10 Choose one:
11 Select PROGRESS page 2.
12 CALCULATED . . . . . . . . . . . . . . . . . . Select USE
Use CALCULATED to determine gross weight.
13 Check the destination fuel estimate. Verify that
adequate fuel is available in the left and right main
tanks to complete the flight.
Go to step 18
[777-200ER, 777-200LR, 777-300, 777-300ER]
14 Resume normal fuel management procedures.
Continued on next page
Fuel Leak continued
FUEL DISAGREE message is blank:
Go to step 13
FUEL DISAGREE message shows:
Go to step 11
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
12.18
12.18
15 Choose one:
16 Select PROGRESS page 2.
17 TOTALIZER OR CALCULATED . . . . . . . Select USE
Select the most accurate value.
18 Choose one:
19 A/T ARM switch
(affected side) . . . . . . Confirm. . . . . . . . . . OFF
20 Thrust lever
(affected side) . . . . . . Confirm. . . . . . . . . . Idle
21 FUEL CONTROL switch
(affected side) . . . . . . Confirm. . . . . . . CUTOFF
22 APU selector
(if APU available) . . . . . . . . . . . . START, then ON
23 Transponder mode selector . . . . . . . . . . TA ONLY
Continued on next page
Fuel Leak continued
FUEL DISAGREE message is blank:
Go to step 18
FUEL DISAGREE message shows:
Go to step 16
An engine fuel leak is not confirmed:
Go to step 29
An engine fuel leak is confirmed:
Go to step 19
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 12.19
12.19
24 Choose one:
25 Select PROGRESS page 2.
26 TOTALIZER . . . . . . . . . . . . . . . . . . . Select USE
Use TOTALIZER to determine fuel remaining.
27 Plan to land at the nearest suitable airport.
Continued on next page
Fuel Leak continued
FUEL DISAGREE message is blank:
Go to step 27
FUEL DISAGREE message shows:
Go to step 25
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波音777快速检查单 Quick Reference Handbook QRH(60)
