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Engines are flamed out or stalled, or EGT is
rapidly approaching or exceeding the limit:
Go to step 11
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
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7.74
16 When the HEAT PITOT L+C+R message blanks:
PRIMARY FLIGHT COMPUTERS
disconnect switch . . . . . . . . . . . . . . . . .DISC,
then AUTO
This restores flight control normal mode.
The autopilot can be re–engaged when flight
control normal mode is restored.
17 Plan to land at the nearest suitable airport.
Volcanic Ash continued
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 7.75
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[RR Engines]
1 Exit volcanic ash as quickly as possible. Consider a
180 degree turn.
2 Don oxygen masks and smoke goggles, if needed.
3 Establish crew communications, if needed.
4 Autothrottle disconnect switch . . . . . . . . . . .Push
6 ENGINE ANTI–ICE selectors (both) . . . . . . . . .ON
7 WING ANTI–ICE selector . . . . . . . . . . . . . . . .ON
8 RECIRC FANS switches (both) . . . . . . . . . . . . Off
9 APU selector
(if APU available) . . . . . . . . . . . . START, then ON
Continued on next page
Volcanic Ash
Condition: Volcanic ash is suspected when one or more
of these occur:
•A static discharge around the windshield
•A bright glow in the engine inlets
•Smoke or dust on the flight deck
•An acrid odor
Objective: Exit the ash cloud and restart engines if
needed.
If conditions allow, run the engines at idle.
5 Thrust levers (both). . . . . . . . . . . . . . . . . Idle
This reduces possible engine damage or
flameout, or both, by decreasing EGT.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
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10 Choose one:
11 FUEL CONTROL switches
(both) . . . . . . . . . . . . . . . . . . CUTOFF, then RUN
12 RAM AIR TURBINE switch . . . . . . . . . . Push and
hold for 1 second
13 Set airspeed above 250 knots.
14 Engines may accelerate to idle very slowly,
especially at high altitudes.
Continued on next page
Volcanic Ash continued
Notes:Volcanic ash can cause non–normal system
reactions such as:
•Engine malfunctions, increasing EGT,
engine stall or flameout
•Decrease or loss of airspeed displays
•EQUIP COOLING OVRD message
•FIRE CARGO FWD or AFT messages
Engines run normally:
Plan to land at the nearest suitable airport
Engines are flamed out or stalled, or EGT is
rapidly approaching or exceeding the limit:
Go to step 11
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 7.77
7.77
15 Slow acceleration may be incorrectly interpreted as
a hung start or engine malfunction. If N3 is steadily
increasing and EGT remains within limits, the start
is progressing normally. Any further cycling of the
fuel control switches will result in longer start
times.
16 When the HEAT PITOT L+C+R message blanks:
PRIMARY FLIGHT COMPUTERS
disconnect switch . . . . . . . . . . . . . . . . . DISC,
then AUTO
This restores flight control normal mode.
The autopilot can be re–engaged when flight
control normal mode is restored.
17 Plan to land at the nearest suitable airport.
Volcanic Ash continued
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
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7.78
Intentionally
Blank
December 10, 2007
777 Flight Crew Operations Manual
Non-Normal Checklists Chapter NNC
Fire Protection Section 8
Table of Contents
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 8.TOC.1
FIRE APU ......................................................8.1
FIRE ENG L, R ...............................................8.2
Fire Engine Tailpipe L, R................................8.5
Fire Engine Tailpipe L, R................................8.6
Smoke, Fire or Fumes.......... 8.8
NNC. 11
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波音777快速检查单 Quick Reference Handbook QRH(41)
