W DOC AIRBUS | MMEL OPS PROC

Nose Wheel Steering Control System


32-51-01ANose Wheel Steering Control System
Applicable to: -
- General Information
The electrical and hydraulic control of NWS is inoperative. Do not reset the WHEEL N/W STRG FAULT alert with A/SKID & N/W STRG selector . The WHEEL N/W STRG FAULTalert indicates that no hydraulic pressure is applied on the NWS actuator.
- Flight preparation/Limitations
Dispatch is not permitted from (or to) contaminated runways.
Maximum crosswind component for takeoff and landing: 20 kt.
Maximum landing capability is CAT 3 SINGLE.
NOTE:
the automatic roll out is not permitted ( Refer to QRH ).
For operations with crosswind component above 5 kt:
Reduce maximum takeoff performance limiting weight by 1000 kg ( 2200 lb)
- During Taxi
Taxiing Procedure:
Avoid high thrust settings, taxi speed limited to 20 kt .
Check brakes temperature (if available) before takeoff.
If necessary, set the BRAKES FAN pb-sw (If Installed) to ON.
Minimum speed of 5 kt is required to initiate a turn.
Apply asymmetrical thrust in straight taxi to compensate crosswind and differential braking for taxi and line up as required.
Avoid sharp turns and use maximum width of the runway.
Do not apply too high asymmetrical thrust to avoid that nose landing gear get stuck to full travel ( 90 °) (in that case release the aircraft by towing).
- For Takeoff
In the case of crosswind component above 5 kt:
Set full nose down elevator till 80 kt regardless of the aircraft loading.
Apply N1 = 50 % on the brakes
Release the brakes, and smoothly apply takeoff power
Use asymmetric braking, if required, to keep on runway center-line until directional control is available by use of rudder.
Release stick progressively to reach neutral at about 100 kt.
- For Landing
Do not use autobrake for landing.
In the case of crosswing component above 5 kt:
Aircraft lateral control is achieved with the rudder until slowing to approximately 50 kt IAS.
Upon reaching 50 kt IAS use differential braking to achieve taxi speed as required.
- After Landing
Disengage AP at touchdown when autoland is performed.
32-51-01ANose Wheel Steering Control System
Applicable to: -
- General Information
The electrical and hydraulic control of NWS is inoperative. Do not reset the WHEEL N/W STRG FAULT alert with A/SKID & N/W STRG selector . The WHEEL N/W STRG FAULTalert indicates that no hydraulic pressure is applied on the NWS actuator.
- Flight preparation/Limitations
Dispatch is not permitted from (or to) contaminated runways.
Maximum crosswind component for takeoff and landing: 20 kt.
Maximum landing capability is CAT 3 SINGLE.
NOTE:
the automatic roll out is not permitted ( Refer to QRH ).
For operations with crosswind component above 5 kt:
Reduce maximum takeoff performance limiting weight by 1000 kg ( 2200 lb)
- During Taxi
Taxiing Procedure:
Avoid high thrust settings, taxi speed limited to 20 kt .
Check brakes temperature (if available) before takeoff.
If necessary, set the BRAKES FAN pb-sw (If Installed) to ON.
Minimum speed of 5 kt is required to initiate a turn.
Apply asymmetrical thrust in straight taxi to compensate crosswind and differential braking for taxi and line up as required.
Avoid sharp turns and use maximum width of the runway.
Do not apply too high asymmetrical thrust to avoid that nose landing gear get stuck to full travel ( 90 °) (in that case release the aircraft by towing).
- For Takeoff
In the case of crosswind component above 5 kt:
Set full nose down elevator till 80 kt regardless of the aircraft loading.
Apply EPR = 1.05 on the brakes
Release the brakes, and smoothly apply takeoff power
Use asymmetric braking, if required, to keep on runway center-line until directional control is available by use of rudder.
Release stick progressively to reach neutral at about 100 kt.
- For Landing
Do not use autobrake for landing.
In the case of crosswing component above 5 kt:
Aircraft lateral control is achieved with the rudder until slowing to approximately 50 kt IAS.
Upon reaching 50 kt IAS use differential braking to achieve taxi speed as required.
- After Landing
Disengage AP at touchdown when autoland is performed.