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A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
MISCELLANEOUS
A318/A319/A320/A321 FLEET PRO-ABN-80 P 63/182
FCOM 19 AUG 10
VOLCANIC ASH ENCOUNTER
Applicable to:
MSN,
Accomplish the following while making a 180 ° turn:
ATC........................................................................................................................................NOTIFY
A/THR.......................................................................................................................................... OFF
This prevents the autothrust from generating thrust variations.
THRUST (conditions permitting).......................................................................................DECREASE
So as to reduce ash ingestion.
If altitude permits, reduce thrust to idle. This maximizes engine surge margin and lowers engine
turbine temperature.
CREW OXYGEN MASKS....................................................................................................ON/100 %
CABIN CREW..........................................................................................................................NOTIFY
PASSENGER OXYGEN...................................................................................................... AS RQRD
Depending on contamination.
ENG ANTI ICE..............................................................................................................................ON
WING ANTI ICE............................................................................................................................ON
PACK FLOW...................................................................................................................................HI
APU.........................................................................................................................................START
If possible, start the APU and have it ready for an assisted engine relight in the event of an engine
flame-out. (Refer to LIM-49-10-A GENERAL - APU STARTER).
ENGINE PARAMETERS..................................................................................................... MONITOR
Monitor particularly EGT. If EGT exceeds limits, it may become necessary to consider a
precautionary engine shutdown and engine restart in flight.
AIRSPEED INDICATIONS...................................................................................................MONITOR
If airspeed is unreliable or lost, Refer to PRO-ABN-34 UNRELIABLE SPEED INDICATION/ADR
CHECK PROC - GENERAL.
If both engines flame out and speed indications are lost, Refer to PRO-ABN-70-S ENG DUAL
FAILURE to get the required pitch attitude for the optimum relight speed. In case of engine failure,
switch off the wing anti ice before engine restart.
To be continued on next page
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
MISCELLANEOUS
A318/A319/A320/A321 FLEET PRO-ABN-80 P 64/182
FCOM 19 AUG 10
VOLCANIC ASH ENCOUNTER (Cont'd)
Note: If sufficient visibility is not granted for approach due to windshield/window damage,
consider AUTOLAND. If AUTOLAND is not available, consider opening the sliding window
on the PF’s side, after cabin depressurization.
To manually depressurize the cabin:
CAB PRESS MODE SEL........................................................................................MAN
MAN V/S CTL.................................................................................................. FULL UP
Due to the increased noise level, pay particular attention to visual warnings.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
MISCELLANEOUS
A318/A319/A320/A321 FLEET PRO-ABN-80 P 65/182
FCOM 19 AUG 10
VOLCANIC ASH ENCOUNTER
Applicable to: ,
, MSN,,
Accomplish the following while making a 180 ° turn:
ATC........................................................................................................................................NOTIFY
A/THR.......................................................................................................................................... OFF
This prevents the autothrust from generating thrust variations.
THRUST (conditions permitting).......................................................................................DECREASE
So as to reduce ash ingestion.
If altitude permits, reduce thrust to idle. This maximizes engine surge margin and lowers engine
turbine temperature.
CREW OXYGEN MASKS....................................................................................................ON/100 %
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 11(49)
