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STRG selector to OFF then ON.
Note: Extending the landing gear initiates an automatic test of the main braking components,
in order to detect any failures. If the flight crew resets the BSCU with the main landing
gear already extended, the failures and associated ECAM indications that are already
detected are erased, even if the BSCU reset does not necessarily correct the failure.
Therefore, in order to detect any remaining failures, the flight crew must reset the BSCU
before landing gear extension.
If required, rearm the autobrake.
After any BSCU reset, a record in the logbook is mandatory to ensure that troubleshooting is
systematically done, in order to investigate the failure before the next flight.
BRAKING IN ALTERNATE MODE
Applicable to: ALL
Apply brakes with care, because initial pedal force or displacement produces more braking action
in alternate mode than in normal mode. If antiskid is lost, modulate brake pressure at, or below,
1 000 PSI.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
LANDING GEAR
A318/A319/A320/A321 FLEET PRO-SUP-32 P 2/6
FCOM 19 AUG 10
THRUST APPLICATION ON BRAKES
Applicable to: ALL
The braking system is not designed to hold the aircraft in a stationary position when a high thrust
level is applied on at least one engine.
The thrust level from which the aircraft starts to move (with parking brake ON, or with manual braking
applied) depends on several factors such as:
‐ Ground surface conditions
‐ Environment
‐ The aircraft wieght
‐ Etc...
During ground procedures that require a thrust increase with braking, the flight crew must ensure that
the aircraft remains stationary, and one flight crew must keep his hands on the thrust levers to be
ready to immediately retard the thrust levers to IDLE if the aircraft starts to move.
BRAKE TEMPERATURE LIMITATIONS REQUIRING MAINTENANCE ACTIONS
Applicable to:
MSN,
Maintenance action is required in the following cases:
‐ The temperature difference between the 2 brakes on the same gear is greater than 150 °C, and
the temperature of either one of the brakes is higher than, or equal to 600 °C, or
‐ The temperature difference between the 2 brakes on the same gear is greater than 150 °C, and
the temperature of one brake is lower than, or equal to 60 °C, or
The difference between the average temperature of the left ‐ gear brakes and the average
temperature of the right gear brakes is 200 °C or more, or
‐ A fuse plug has melted, or
‐ One brake’s temperature exceeds 900 °C.
BRAKE TEMPERATURE LIMITATIONS REQUIRING MAINTENANCE ACTIONS
Applicable to: ,
, MSN,,
Maintenance action is required in the following cases:
‐ The temperature difference between the 2 brakes on the same gear is greater than 150 °C, and
the temperature of either one of the brakes is higher than, or equal to, 600 °C or
‐ The temperature difference between the 2 brakes on the same gear is greater than 150 °C, and
the temperature of one brake is lower than, or equal to 60 °C,or
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
LANDING GEAR
A318/A319/A320/A321 FLEET PRO-SUP-32 P 3/6
FCOM 19 AUG 10
‐ The difference between the average temperature of the left gear brakes and the average
temperature right gear brakes is 200 °C or more,or
‐ A fuse plug has melted, or
‐ One brake’s temperature exceeds 800 °C.
OPERATION WITH NOSEWHEEL STEERING OFFSET
Applicable to: ALL
GENERAL
During taxi, the crew may notice an aircraft veering tendency. This can be due to some external
conditions (crosswind, slope....), or it can be due to the nosewheel steering system itself. The latter
case is identifiable due to flight crews’ consecutive reports of permanent aircraft veering tendency.
Such reports enable maintenance to determine when corrective action or troubleshooting is
required.
A veering aircraft may still be operated before corrective action is taken, provided nosewheel
steering deviation is within the values specified in the following table.
NWS OFFSET OPERATIONAL LIMITATION
NWS Offset Offset ≤ 0.5 ° 0.5 ° < Offset ≤ 1.5 ° Offset > 1.5 °
Rudder trim to
taxi straight Trim ≤ 3 ° 3 ° < Trim ≤ 8.8 ° Trim > 8.8 °
Procedures No operational
limitation
Apply the following procedure :
Autoland:
‐ MAX X WIND ...10 kt
Immediate
maintenance
action is due
CAUTION The tolerance required by maintenance guidelines (± 0.5 ° NWS offset,
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 14(87)
