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Copyright © The Boeing Company. See title page for details.
D632W001-TBC 2.11
2.11
3 Checklist Complete Except Deferred Items
When at pattern altitude:
OUTFLOW VALVE MANUAL
switches (both) . . . . . . . . . Push to OPEN and
hold for 30 seconds or
until the outflow valve
displays show fully open
[Option]
CABIN ALTITUDE AUTO continued
Notes:The recommended cabin rate is
approximately 500 FPM for climbs and
descents.
Recommended cabin altitude in cruise is:
FLIGHT LEVEL CABIN ALTITUDE
Up to 230 Landing Field Elevation
260 2000
300 4000
350 6000
400 and above 8000
Deferred Items
CARGO A/C FWD
Condition: Forward cargo air conditioning is
inoperative.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
2.12
2.12
1 Wait 2 minutes. This allows time for any smoke in
the system to clear.
2 EQUIP COOLING switch . . . . . . . . Off, then AUTO
3 Choose one:
CARGO HEAT AFT, BULK
Condition: One of these occurs:
•Cargo heat is inoperative
•The cargo temperature selector is off
EQUIP COOLING
Condition: The forward equipment cooling system is
failed.
[] EQUIP COOLING OVRD
Condition: The equipment cooling system is in override
mode.
EQUIP COOLING message blanks:
EQUIP COOLING message stays shown:
Note: After 30 minutes of operation at low
altitude and low cabin differential
pressure, electronic equipment and
displays may fail.
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 2.13
2.13
1 LDG ALT selector . . . . . . . . . . . . . . . . . PULL ON
and set manually
1 OUTFLOW VALVE switch (affected side). . . . .MAN
[] LANDING ALTITUDE
Condition: One of these occur:
•The FMC does not supply a landing
altitude
•The landing altitude selector is pulled
[] OUTFLOW VALVE AFT, FWD
Condition: One of these occurs:
•Automatic outflow valve control is
inoperative
•The outflow valve switch is in manual
Objective: To allow the operable outflow valve to take
full control of cabin pressure.
Valves may take up to 6 seconds
to begin moving.
2 OUTFLOW VALVE MANUAL
switch (affected side). . . . . . . . Push to CLOSE
and hold for 30 seconds
or until the outflow valve
display shows fully closed
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
2.14
2.14
1 Wait 2 minutes. This allows time for an overheat
condition to cool.
2 AIR COND RESET switch . . . . . . . . . . . Push and
hold for 1 second
3 Wait 2 minutes.
4 Choose one:
[] PACK L, R
Condition: The pack is shut down.
PACK message stays blank:
PACK message shows again:
PACK switch . . . . . . . . . . . . . . . . . . .Off
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC 2.15
2.15
Intentionally
Blank
December 10, 2007
777 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
D632W001-TBC
2.16
2.16
1 Wait 2 minutes. This allows time for an overheat
condition to cool.
2 AIR COND RESET switch . . . . . . . . . . . Push and
hold for 1 second
3 Wait 2 minutes.
4 Choose one:
5 Descend to the lowest safe altitude or 10,000 feet,
whichever is higher.
If needed to prevent excessive cabin altitude,
descend with speedbrakes extended at
VMO/MMO
6 When at level off:
Go to step 7
7 OUTFLOW VALVE switches (both) . . . . . . . . .MAN
Continued on next page
[] PACK L+R
Condition: Both packs are shut down.
Objective: To prevent excessive cabin altitude and
temperature by descending and increasing
ventilation.
PACK L+R message stays blank:
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波音777快速检查单 Quick Reference Handbook QRH(17)
