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L12
ASSOCIATED PROCEDURES
AIR ABNORM BLEED CONFIG
L2 If the APU line leak is fed by an engine bleed.
STATUS
INOP SYS
ENG 1 BLEED
APU BLEED
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
PNEUMATIC
A330/A340 FLEET PRO-ABN-36 P 26/30
FCOM 19 AUG 10
AIR APU BLEED LEAK
Applicable to:
�� If the APU line leak is fed by an engine bleed:
APU LEAK FED BY ENG
APU BLEED (IF NOT AUTOMATICALLY CLOSED)....................................................................OFF
L2With the APU BLEED pb-sw ON, the FAULT light remains on.
With the APU BLEED pb-sw off, the FAULT light goes off when the overheat disappears.
L1�� If the APU line leak is fed by an engine bleed, and engine bleed valve autoclosure is
inoperative:
ENG 1 BLEED........................................................................................................................OFF
L12
ASSOCIATED PROCEDURES
AIR ABNORM BLEED CONFIG
L2 If the APU line leak is fed by an engine bleed.
�� If the APU line leak is fed by an engine bleed:
APU LEAK FED BY ENG
APU BLEED (IF NOT AUTOMATICALLY CLOSED)....................................................................OFF
L2With the APU BLEED pb-sw ON, the FAULT light remains on.
With the APU BLEED pb-sw off, the FAULT light goes off when the overheat disappears.
L1�� If the APU line leak is fed by an engine bleed and engine bleed valve autoclosure is
inoperative:
ENG 1 BLEED........................................................................................................................OFF
ENG 2 BLEED........................................................................................................................OFF
L12
ASSOCIATED PROCEDURES
AIR ABNORMAL BLEED CONFIG
L2 If the APU line leak is fed by an engine bleed.
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
PNEUMATIC
A330/A340 FLEET PRO-ABN-36 P 27/30
FCOM 19 AUG 10
AIR APU BLEED LEAK (Cont'd)
STATUS
INOP SYS
ENG 1 BLEED
ENG 2 BLEED
APU BLEED
STATUS
INOP SYS
ENG 1 BLEED
APU BLEED
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
PNEUMATIC
A330/A340 FLEET PRO-ABN-36 P 28/30
FCOM 19 AUG 10
AIR DUAL BLEED FAULT
Applicable to: ,
�� If ENG 1 BLEED was lost due to a:
LEAK on side 1
ENG 1 FIRE
Start Air Valve 1 failed open.
APU BLEED LEAK FED BY ENGINE
DESCENT TO FL100/MEA............................................................................................. INITIATE
Descend rapidly to FL 100/MEA, with full speedbrakes, to prevent excessive cabin altitude.
AVOID ICING CONDITIONS
�� If ENG 2 BLEED was lost due to a:
LEAK on side 2
ENG 2 FIRE
Start Air Valve 2 failed open.
X BLEED........................................................................................................... CHECK CLOSED
DESCENT TO FL220/MEA............................................................................................. INITIATE
Descend rapidly to FL 220, with full speedbrakes, to recover bleed supply from APU.
APU.................................................................................................................................. START
Start the APU during the descent.
�� AT, OR BELOW, FL220:
WING A. ICE....................................................................................................................OFF
APU BLEED must not be used for wing anti-ice.
APU BLEED....................................................................................................................... ON
MAX FL220
AVOID ICING CONDITIONS
�� In all other cases:
DESCENT........................................................................................................................INITIATE
Descend rapidly to FL 220, with full speedbrakes, so that the bleed supply may be supplied by
the APU if the bleed system recovery is not successful.
�� If both packs are available:
If both packs are operative, it can be suspected that second bleed system failed due to
excessive demand. Second failed engine bleed recovery may be attempted.
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
PNEUMATIC
A330/A340 FLEET PRO-ABN-36 P 29/30
FCOM 19 AUG 10
AIR DUAL BLEED FAULT (Cont'd)
�� If ENG 1 BLEED is lost first:
PACK 1...................................................................................................................... OFF
　
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