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selector valve is failed open, nosewheel steering remains pressurized, and so towing may either
break the towbar’s shear pin, or the nose gear (if towbarless towing).
L12‐ If the steering selector valve is failed open, setting A/SKID & N/W STRG sw to OFF will cause
the nosewheel to go to maximum deflection.
L1 A/SKID N/WS....................................................................................................................... KEEP ON
L2 As long as antiskid is operative, brake pressure is regulated by normal servovalves
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
LANDING GEAR
A330/A340 FLEET PRO-ABN-32 P 57/64
FCOM 19 AUG 10
WHEEL HYD SEL VALVE (Cont'd)
A/SKID N/WS.......................................................KEEP ON
BRAKES SYS 1 (2) FAULT
Applicable to:
L2 One BSCU system is failed.
L1
L2Crew awareness.
STATUS
INOP SYS
BRAKES SYS 1 (2)
BRAKES SYS 1 (2) FAULT
Applicable to: ,
L2 One BSCU channel has failed.
L1
L2Crew awareness.
STATUS
INOP SYS
BRAKES SYS 1 (2)
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
LANDING GEAR
A330/A340 FLEET PRO-ABN-32 P 58/64
FCOM 19 AUG 10
BRAKES SYS 1 (2) FAULT
Applicable to:
L2 One BSCU system is failed.
L1
L2Crew awareness.
L2 One BSCU channel has failed.
L1
L2Crew awareness.
STATUS
INOP SYS
BRAKES SYS 1 (2)
WHEEL N/W STRG FAULT
Applicable to: ,
L2Crew awareness.
L12
STATUS
CAT 3 SINGLE ONLY
See (1)
INOP SYS
CAT 3 DUAL
N/W STRG
(1)
NL2ote: Refer to 00009148 **Not found**automatic rollout is not authorized..
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
LANDING GEAR
A330/A340 FLEET PRO-ABN-32 P 59/64
FCOM 19 AUG 10
WHEEL N/W STRG FAULT
Applicable to: MSN ,
,
L2Crew awareness.
L12
STATUS
CAT 3 SINGLE ONLY
See (1)
INOP SYS
CAT 3 DUAL
N/W STRG
(1)
NL2ote: Refer to 00009148 **Not found**automatic rollout is not authorized..
WHEEL TIRE LO PR
Applicable to: ,
L2Crew awareness.
NWS OVERSTEER
Applicable to: ,
Maintenance action is due, when the NWS TOWING FAULT light comes on.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
LANDING GEAR
A330/A340 FLEET PRO-ABN-32 P 60/64
FCOM 19 AUG 10
LOSS OF BRAKING
Applicable to: ALL
IF AUTOBRAKE IS SELECTED :
BRAKE PEDALS................................................................................................................PRESS
This will override the autobrake.
IF NO BRAKING AVAILABLE :
REV...................................................................................................................................... MAX
BRAKE PEDALS........................................................................................................... RELEASE
Brake pedals should be released when the A/SKID & N/W STRG sw is OFF, since the pedal
force or displacement produces more braking action in alternate mode than in normal mode.
A/SKID & N/W STRG............................................................................................................. OFF
The braking system reverts to alternate mode.
BRAKE PEDALS................................................................................................................PRESS
Apply brakes with care, since initial pedal force or displacement produces more braking action
in alternate mode than in normal mode.
MAX BRK PR..................................................................................................................1000 PSI
Monitor brake pressure on the BRAKES PRESS indicator. Limit brake pressure to
approximately 1 000 PSI and, at low ground speed, adjust brake pressure as required.
If STILL NO BRAKING :
PARKING BRAKE.................................................................................................................. USE
Use short successive parking brake applications to stop the aircraft. Brake onset asymmetry
may be felt at each parking brake application. If possible, delay use of the parking brake until
low speed to reduce the risk of tire burst and lateral control difficulties.
BRAKE AUTO BRK FAULT
Applicable to: ,
L2 Autobrake function is lost.
L1
L2Crew awareness.
To be continued on next page
A330/A340 FLIGHT CREW
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 8(64)
