Mooring of Aircraft with Weight and Balance Provision on the Landing Gear Legs

TASK 10-20-00-556-001-A-01
Mooring of Aircraft with Weight and Balance Provision on the Landing Gear Legs

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

CAUTION: THE LAST FEET OF ALL TAXIING AND TOWING OPERATIONS MUST BE IN A STRAIGHT LINE. THIS IS TO PREVENT FORCE ON THE TIRES AND THE MAIN LANDING GEAR.

1. Reason for the Job
The function of mooring is to prevent damage to the aircraft on the ground in high wind conditions.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CHOCK - WHEEL(S)
No specific	AR	SHACKLES - NLG
98D10203500000	1	MOORING KIT-NLG (BASIC STANDARD TOWING BRACKET)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 05-57-00-200-001-A	Aircraft Stability
TASK 05-57-00-200-001-B	Aircraft Stability
TASK 05-57-00-200-001-C	Aircraft Stability
TASK 10-10-00-550-801-A	Parking and Storage Procedure
TASK 10-11-00-555-015-A	Procedure for the Installation of Wheel Chocks on Aircraft
TASK 10-20-00-556-001-A	Mooring of Aircraft without Weight and Balance Provision on the Landing Gear Legs
TASK 12-34-24-869-002-A	Aircraft Grounding (Earthing) for the Maintenance Operations
TASK 12-34-24-869-002-A-01	Aircraft Grounding (Earthing) during Transit, Turnaround or Overnight Stop
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
NLG - Weight and Balance Provisions
MLG - Weight and Balance Provisions
Position of the Ground Master Rings
Attachment of the Mooring Ropes on the Nose Landing Gear
Position of the Mooring Ropes
Attachment of the Mooring Ropes on the Main Landing Gear

3. Job Set-up
Subtask 10-20-00-941-053-A

A. General
This procedure is only applicable to aircraft with weight and balance provisions on the landing gear legs.

NLG - Weight and Balance Provisions

MLG - Weight and Balance Provisions

If the aircraft does not have weight and balance provisions (Ref. AMM TASK 10-20-00-556-001).

Subtask 10-20-00-860-053-A

B. Aircraft Stability
(1) The limits of aircraft stability in relation to the wind speed are given in the aircraft stability procedure, (Ref. AMM TASK 05-57-00-200-001).

Subtask 10-20-00-941-052-A

C. Weather Limits
(1) Wind conditions
(a) For wind speeds of less than 50 knots (92 km/h):

Mooring is not necessary.

(b) If the aircraft points into the wind and wind speed is:

Between 50 and 70 knots (92 and 129 km/h), moor the aircraft at the NLG
More than 70 knots (129 km/h), moor the aircraft at the NLG and MLG.

For wind speeds or gusts of more than 50 knots (92 km/h), moor the aircraft at the NLG and the MLG.

(2) Icing condition limits in high wind conditions (wind speed of 50 knots (92 km/h) or more):
(a) For a temperature of less than -5 deg.C (23.00 deg.F):

Move the aircraft into a hangar.

(b) For a temperature of more than -5 deg.C (23.00 deg.F):

If there is ice or if ice is possible, Airbus recommends that you put salt around and below the tires.
If there is thick ice or compacted snow, remove the ice or snow, or move the aircraft into a hangar.

Subtask 10-20-00-860-051-A

D. Aircraft Maintenance Configuration
(1) Put the aircraft in position on a flat surface with the mooring points.
Make sure that the wheels of the NLG are on the aircraft axis and that the aircraft points into the wind.

Position of the Ground Master Rings

(2) Make sure that the landing-gear safety devices are in position (Ref. AMM TASK 32-00-00-481-001).
(3) Electrically ground the aircraft (Ref. AMM TASK 12-34-24-869-002).
(4) Put the CHOCK - WHEEL(S) in position (Ref. AMM TASK 10-11-00-555-015).
(5) Make sure that the flaps, the slats, the spoilers, the speed brakes and the thrust reversers are retracted.
(6) Make sure that the Trimmable Horizontal Stabilizer (THS) is set to neutral.
(7) Make sure that the sliding windows of the cockpit are closed.
(8) Make sure that the passenger/crew doors and the cargo compartment doors are closed.
(9) Put the aircraft in the parking configuration in relation to weather conditions (Ref. AMM TASK 10-10-00-550-801).

4. Procedure
Subtask 10-20-00-481-054-A

A. Mooring of the Nose Landing Gear
(1) With the Mooring kit
(a) Put the 98D10203500000 MOORING KIT-NLG (BASIC STANDARD TOWING BRACKET) in position.
(2) Or with Ropes

Attachment of the Mooring Ropes on the Nose Landing Gear

Position of the Mooring Ropes

(a) Attach the short ropes (1) of a diameter of 50.8 mm (2.0000 in.) in position on the towing lug of the nose landing gear with the SHACKLES - NLG.

NOTE: If manila or sisal rope is used, make sure that there is not too much tension on the rope because contraction can occur in wet weather.

(b) Attach the other ropes (2) of a diameter of 50.8 mm (2.0000 in.).
(c) Attach all the ropes on the ground with the mooring points. Put tension on this assembly.

Subtask 10-20-00-481-055-A

B. Mooring of the Main Landing Gear with Ropes

Attachment of the Mooring Ropes on the Main Landing Gear

Position of the Mooring Ropes

(1) Attach the ropes (3) and (4) of a diameter of 50.8 mm (2.0000 in.) on the towing lug and the debogging lug of the main landing gear.

NOTE: If manila or sisal rope is used, make sure that there is not too much tension on the rope because contraction can occur in wet weather.

(2) Attach the ropes on the ground with the mooring points. Put tension on this assembly.

5. Close-up
Subtask 10-20-00-942-052-A

A. Put the aircraft back to its initial configuration
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.03.31 22:53:25 UTC