REFERENCE: APPENDIX 1 AOT A330-32A-3256 dated 23 August 2011 

The APPENDIX 1 PART 1 lists basic and growth main landing gear wheel axle part numbers, serial 

numbers and date of repair of the affected wheel axles. These wheel axles will have to be removed from 

service before reaching life limits and timescales as defined in paragraph 4.1.1. 

The APPENDIX 1 PART 2 defines the on-wing wheel axle replacement procedure. 

    Page 1 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

APPENDIX 1 PART 1: LIST OF WHEEL AXLES PART NUMBER, SERIAL NUMBER, AND DATE OF 

REPAIR

Note 1: part number 201272638 or 201272644 may have been re-identified as part number 

201272649, through incorporation of [REF 1] or [REF 2] 

Note 2: part number 201485601 may have been re-identified as part number 201485615, through 

incorporation of [REF 2] 

Part Number Serial Number Date of Repair 

201272649 SER2726/93 31/01/05

201272649 1410/00 24/01/05

201272649 GDH13-4398 31/01/05

201272649 GDH14-4398 31/01/05

201272649 GDH19-4397 24/11/06

201272649 GDH21-4391 24/11/06

201272649 GDH24-4372 24/06/04

201272649 GDH25-4372 01/09/05

201272649 GDH27-4372 01/09/05

201272649 GDH33-2517 01/09/05

201272649 GDH37-2517 17/02/06

201272644 SER10923/93 19/02/04

201272649 SER10936/93 11/03/04

201272649 SER10991/94 12/03/07

201272649 SER10994/94 15/06/10

201272649 SER11031/94 15/06/10

201272649 SER11036/94 15/01/07

201272649 SER11111/93 28/03/05

201272649 SER11113/93 05/10/04

201272649 SER11114/93 20/12/05

201272649 SER11115/93 05/10/04

201272649 SER11131/93 05/10/04

201272644 SER11132/93 05/10/04

201272649 SER11245/97 20/09/08

201272649 SER11255/97 19/06/09

201272649 SER11256/97 19/06/09

201272649 SER11257/97 19/06/09

201272649 SER11314/95 14/04/06

201272649 SER11321/94 09/11/06

201272649 SER11325/94 12/03/07

201272649 SER11326/93 12/12/05

201272649 SER11328/93 12/12/05

201272649 SER11352/97 26/10/08

201272649 SER11353/97 26/10/08

201272649 SER11354/97 26/10/08

201272649 SER11355/97 26/10/08

201272649 SER11379/93 31/01/05

201485615 SER11462/96 24/08/07

201485615 SER11682/96 24/08/07

201485615 SER11684/96 24/08/07

    Page 2 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

   

Part Number Serial Number Date of Repair 

201485615 SER11685/96 24/08/07

201272649 SER11734/95 01/06/07

201272649 SER11735/95 12/03/07

201272649 SER11736/95 12/03/07

201272649 SER11737/95 01/06/07

201272649 SER11738/95 15/01/07

201272649 SER11739/95 15/01/07

201272649 SER11741/95 29/03/07

201272649 SER11834/95 23/09/08

201272649 SER11836/95 29/05/09

201272649 SER11837/95 29/05/09

201272649 SER11909/97 22/12/08

201272649 SER11910/97 20/09/08

201272649 SER11911/97 20/09/08

201272649 SER11912/97 20/09/08

201272649 SER12074/98 07/09/09

201272649 SER12076/98 08/01/10

201272649 SER12121/01 02/04/09

201272649 SER12123/01 02/04/09

201485615 SER12126/96 12/10/07

201485615 SER12130/96 12/10/07

201485615 SER12131/96 12/10/07

201272649 SER12407/97 23/09/08

201272649 SER12408/97 23/09/08

201272649 SER1366/99 26/11/09

201272649 SER1378/98 22/12/08

201272649 SER1379/98 24/04/09

201272649 SER1380/98 22/12/08

201272649 SER1381/98 22/12/08

201272649 SER1384/98 24/04/09

201272649 SER13901/93 12/12/05

201485601 SER13981/95 01/02/07

201485615 SER13989/95 01/02/07

201485601 SER13990/95 01/02/07

201272649 SER1499/99 08/01/10

201272649 SER1734/98 23/09/08

201272649 SER18664/95 01/06/07

201272649 SER18665/95 01/06/07

201272649 SER1994/98 20/02/09

201272649 SER1998/98 20/02/09

201272649 SER2097/98 13/12/08

201272649 SER2098/98 13/12/08

201272649 SER2099/98 13/12/08

201272649 SER2100/98 13/12/08

201272649 SER2584/95 14/04/06

201272649 SER2585/95 14/04/06

201272649 SER2586/95 14/04/06

201272649 SER262/04 20/05/09

201272649 SER2687/93 21/10/04

    Page 3 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

Part Number Serial Number Date of Repair 

201272649 SER2688/93 24/06/04

201272649 SER2704/93 15/04/05

201272649 SER2735/93 15/04/05

201272649 SER2824/95 02/08/06

201272649 SER3058/93 28/03/05

201272644 SER3059/93 05/03/05

201272649 SER3060/93 28/03/05

201272649 SER3088/98 20/03/09

201272649 SER3089/98 20/03/09

201272649 SER3090/98 20/03/09

201272649 SER3091/98 20/03/09

201272649 SER3229/98 20/02/09

201272649 SER3319/93 15/12/04

201272649 SER3536/93 15/12/04

201272649 SER3537/93 15/12/04

201272649 SER3538/93 15/12/04

201272644 SER3541/93 19/02/04

201485615 SER3695/97 04/12/07

201485615 SER3697/97 04/12/07

201272649 SER3703/97 13/08/07

201272649 SER3704/97 22/08/07

201272649 SER3705/97 13/08/07

201272649 SER3746/99 26/11/09

201272649 SER3748/99 04/12/09

201272649 SER3843/99 04/12/09

201272649 SER3845/99 11/06/09

201272649 SER3846/98 11/06/09

201272649 SER3847/99 11/06/09

201485615 SER3856/97 04/12/07

201485615 SER3858/97 04/12/07

201485615 SER3859/97 28/12/07

201485615 SER3861/97 28/12/07

201272649 SER3863/97 22/08/07

201272649 SER3953/99 08/10/09

201272649 SER3962/99 08/10/09

201272649 SER3980/99 08/10/09

201485615 SER4018/97 28/12/07

201485615 SER4021/97 28/12/07

201272649 SER4049/99 04/12/09

201272649 SER4050/99 04/12/09

201272649 SER4052/99 08/09/09

201272649 SER4054/99 08/09/09

201272649 SER4059/99 08/10/09

201485615 SER4372/97 22/12/07

201272649 SER4572/98 03/04/09

201272649 SER4616/98 13/06/09

201272649 SER4618/98 13/06/09

201272649 SER4620/98 13/06/09

201272649 SER4622/98 13/06/09

   

    Page 4 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

Part Number Serial Number Date of Repair 

201272649 SER4704/99 08/09/09

201272649 SER4706/99 08/09/09

201272649 SER4787/98 03/04/09

201272649 SER4789/98 03/04/09

201272649 SER4912/98 26/03/09

201272649 SER4913/98 26/03/09

201272649 SER4914/98 26/03/09

201272649 SER4957/99 07/01/10

201272649 SER4959/99 07/01/10

201272649 SER4976/99 07/01/10

201272649 SER5664/96 09/03/10

201272649 SER5666/96 20/07/10

201272644 SER5671/96 29/03/07

201272649 SER5672/96 29/03/07

201272649 SER5673/96 29/03/07

201272649 SER5674/96 15/01/07

201272649 SER5710/95 02/08/06

201272649 SER5711/95 02/08/06

201272649 SER5715/95 02/08/06

201272644 SER5912/94 05/03/05

201272644 SER5913/94 05/03/05

201272644 SER5914/94 05/03/05

201272649 SER5915/94 28/03/05

201485615 SER5953/97 14/04/08

201485615 SER5955/97 22/12/07

201485615 SER5956/97 14/04/08

201272649 SER5999/94 04/05/05

201272649 SER6002/94 28/10/05

201272649 SER6004/94 28/10/05

201272644 SER6015/94 04/05/05

201272649 SER6017/94 04/05/05

201272649 SER6019/94 04/05/05

201272649 SER6047/92 11/03/04

201272649 SER6048/92 11/03/04

201272649 SER6102/92 19/07/04

201272649 SER6119/92 17/02/06

201272649 SER6120/92 01/09/05

201272649 SER6121/92 10/05/06

201272649 SER6124/92 10/05/06

201272649 SER6147/92 24/01/05

201485615 SER6165/97 03/06/08

201485615 SER6166/97 03/06/08

201485615 SER6167/97 03/06/08

201485615 SER6168/97 03/06/08

201272649 SER6177/92 17/02/06

201272649 SER6182/92 17/02/06

201272649 SER6183/92 17/02/06

201272649 SER6186/92 09/11/06

201272644 SER6189/92 19/06/04

   

    Page 5 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

Part Number Serial Number Date of Repair 

201272644 SER6190/92 19/06/04

201272649 SER6224/92 19/02/04

201272649 SER6225/92 12/12/05

201272649 SER6228/92 19/07/04

201272649 SER6229/92 21/10/04

201272649 SER6231/92 21/04/05

201272649 SER6232/92 21/04/05

201272649 SER6233/92 09/11/06

201272649 SER6236/92 19/07/04

201272649 SER6237/92 19/06/04

201272649 SER6239/92 19/07/04

201485615 SER6319/97 01/08/08

201485615 SER6320/97 01/08/08

201485615 SER6321/97 01/08/08

201485615 SER6322/97 01/08/08

201272649 SER6353/94 10/05/06

201272649 SER6354/94 20/12/05

201272649 SER6356/94 10/05/06

201272649 SER6369/98 26/03/09

201272649 SER6389/98 09/03/09

201272649 SER6390/98 09/03/09

201272649 SER6391/98 09/03/09

201272649 SER6394/98 01/07/09

201272649 SER7566/98 14/04/08

201272649 SER7910/98 14/04/08

201272649 SER7913/98 01/07/09

201272649 SER7914/98 01/07/09

201272649 SER7916/98 01/07/09

201272649 SER8720/94 20/12/05

201272649 SER8722/94 20/12/05

201272649 SER9313/98 24/01/05

201485615 SER9320/96 14/04/07

201272649 SER9322/98 24/01/05

201272649 SER9326/98 20/05/09

201272649 SER9365/98 20/05/09

201272649 SER9373/98 17/09/09

201272649 SER9374/98 17/09/09

201272644 SER9437/97 30/07/08

201272644 SER9438/97 30/07/08

201272649 SER9439/97 30/07/08

201272649 SER9440/97 30/07/08

201272649 SER9508/95 09/11/06

201272649 SER9514/95 29/09/06

201272649 SER9515/95 29/09/06

201272649 SER9516/95 29/09/06

201272649 SER9517/95 29/09/06

201485615 SER9532/96 14/04/07

201485615 SER9533/96 14/04/07

201485615 SER9535/96 14/04/07

   

    Page 6 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 1

    Page 7 of 11

Part Number Serial Number Date of Repair 

201272649 SER9559/98 17/09/09

201272649 SER9560/98 17/09/09

201272649 SER959/96 09/03/10

201272649 SER9618/99 27/10/08

201272649 SER9713/98 22/12/09

201272649 SER9714/98 22/12/09

201272649 SER9715/98 22/12/09

201272649 SER9716/98 22/12/09

201272649 SER9717/98 26/11/09

201485615 SER9893/95 01/02/07
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 2

APPENDIX 1 PART 2: ON-WING WHEEL AXLE REPLACEMENT PROCEDURE 

WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN 

POSITION BEFORE YOU START A TASK ON OR NEAR: 

- THE FLIGHT CONTROLS 

- THE FLIGHT CONTROL SURFACES 

- THE LANDING GEAR AND THE RELATED DOORS 

- COMPONENTS THAT MOVE 

MOVEMENT OF COMPONENTS CAN KILL OR INJURE PERSONS. 

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE CORRECTLY INSTALLED 

ON THE LANDING GEAR. 

THIS PREVENTS UNWANTED MOVEMENT OF THE LANDING GEAR. 

1. Reason for the Job

Self Explanatory 

2. Job Set-up Information

 A. Fixtures, Tools, Test and Support Equipment 

REFERENCE QTY DESIGNATION 

No specific blanking caps

No specific blanking plugs

No specific warning notices

B. Referenced Information 

REFERENCE DESIGNATION 

07-11-00-581-801 Lifting of the Aircraft for Maintenance Operations

07-11-00-586-801 Lowering of the Aircraft for Maintenance Operations

29-00-00-863-801 Pressurize the Green Hydraulic System with the Ground Hydraulic 

Supply

29-00-00-864-804 Put the Related Hydraulic System in the Depressurized 

Configuration before Maintenance Action 

32-00-00-481-801 Installation of the Safety Devices on the Landing Gears 

32-00-00-860-804 Flight Configuration Precautions 

32-00-00-860-805 Ground Configuration after Flight Configuration 

32-11-11-000-805 Removal of the MLG Brake Rod 

32-11-14-020-050 Disconnection of the forward articulating link, 1M & 2M electrical 

harnesses and hydraulic pipes. 

32-11-14-420-053 Reconnection of the forward articulating link, 1M & 2M electrical 

harnesses and hydraulic pipes. 

32-31-00-740-801 BITE test of the Normal Extension and Retraction System 

32-31-73-220-801 MLG Proximity Sensors 15GA1, 15GA2, 16GA1, 16GA2, 26GA1, 

26GA2, 27GA1, 27GA2, 28GA1, 28GA2, 29GA1, 29GA2, 

30GA1,30GA2, 31GA1, 31GA2 – Clearance and Offset Check 

32-41-11-000-801 Removal of the MLG Wheel 

32-41-11-400-801 Installation of the MLG Wheel 

    Page 8 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 2

32-41-14-000-801 Removal of the MLG Axle Sleeve 

32-41-14-400-801 Installation of the MLG Axle Sleeve 

32-42-27-000-801 Removal of the MLG Wheel Brake 

32-42-27-400-801 Installation of the MLG Wheel Brake 

32-46-00-740-80 BITE Test of the BSCU and its Related Systems 

32-48-51-400-801 Installation of the Brake Fan Motor Assembly 

32-49-00-740-801 BITE Test of the TPIS 

3. Job Set-up

 A. Safety Precautions 

 (1) Make sure that the ground safety locks are correctly installed (Ref. AMM TASK 

32-00-00-481-801). 

 (2) Put the warning notices in these positions: 

- On the ground service connections to tell persons not to operate the Green and 

the Blue hydraulic systems 

- On the panel 312VU to tell persons not to operate the L/G. 

 B. Aircraft Maintenance Configuration 

 (1) Make sure that the Green and the Blue hydraulic systems are depressurized 

(Ref. AMM TASK 29-00-00-864-804). 

 (2) Do the flight configuration precautions (Ref. AMM TASK 32-00-00-860-804). 

 C. Get access to the avionics compartment. Then open, safety and tag this(these) circuit 

breaker(s): 

PANEL DESIGNATION FIN LOCATION 

721VU BSCU SYS 1 1GG S11

721VU TYRE PRESS IND 1GV T13 

721VU HYD PUMP G CTL 9JV U09 

721VU HYD PUMP B CTL 9JC X12 

722VU LGCIU 2 2GA U37 

722VU BSCU SYS 2 2GG U36 

742VU LGCIU 1 1GA L63 

FOR 5010GM

C/B NOT APPLICABLE

FOR 5011GM 

C/B NOT APPLICABLE 

 D. Lift the aircraft on jacks 

 (1) Only removal of Forward axle 

(a) Lift the aircraft sufficiently to remove the Forward Wheels and Brakes with 

the rear wheels still in contact with the ground (Ref. AMM TASK 07-11-00-581-801). 

(2) Only removal of Aft axle 

(a) Lift the aircraft sufficiently to remove the Aft Wheels and Brakes with the 

Bogie beam in a horizontal position (Ref. AMM TASK 07-11-00-581-801). 

    Page 9 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 2

(3) Removal of both Forward and Aft axle 

(a) Lift the aircraft sufficiently to remove the Aft and Forward Wheels and 

Brakes with the bogie in a horizontal position (Ref. AMM TASK 07-11-00-581-801) 

 (b) Disconnect the hydraulic pipes, 1M and 2M electrical harnesses and 

disconnect the MLG articulation as per AMM 32-11-14-020-050 Step A. (1) to Step A. 

(7)(f) included 

 E. Get Access 

 (1) Remove the applicable wheels and wheel brakes (Ref. AMM TASK 32-41-11-000-

801)(Ref. AMM TASK 32-42-27-000-801). 

 (2) Remove of the Axle Sleeves (Ref. AMM Task 32-41-14-000-801) 

F. Replace the MLG Wheel Axle(s) (Ref. Messier-Bugatti-Dowty Service Bulletin A33/34-32-

300). 

 G. Dimensional Check 

 (1) Do the dimensional check of the proximity sensors 27GA1(29GA1) and 

27GA2(29GA2) (Ref. AMM TASK 32-31-73-220-801). 

 H. Get access to the avionics compartment. Then remove the safety clip(s) and the tag(s) 

and close this (these) circuit breaker(s): 

PANEL DESIGNATION FIN LOCATION 

721VU BSCU SYS 1 1GG S11

721VU TYRE PRESS IND 1GV T13 

721VU HYD PUMP G CTL 9JV U09 

721VU HYD PUMP B CTL 9JC X12 

722VU LGCIU 2 2GA U37 

722VU BSCU SYS 2 2GG U36 

742VU LGCIU 1 1GA L63 

FOR 5010GM

C/B NOT APPLICABLE

FOR 5011GM 

C/B NOT APPLICABLE 

 J. Installation 

(1) In case of removal of both Forward and Aft axles (Step 3. D. (3) ), reconnect the 

MLG articulating link, the hydraulic pipes and 1M and 2M electrical harnesses as per 

AMM 32-11-14-420-053 Step D. (1) to Step D. (21) included. 

(2) Install the Axle Sleeves (Ref. AMM Task 32-41-14-400-801) 

 (3) Install the applicable brakes and wheels (Ref. AMM TASK 32-42-27-400-801)(Ref. 

AMM TASK 32-41-11-400-801). 

WARNING: THE MLG BOGIE PITCH TRIMMER CAN CAUSE THE MLG BOGIE 

TO TURN. MAKE SURE THAT THE TRAVEL RANGE(S) OF THE 

MLG BOGIE(S) IS (ARE) CLEAR, BEFORE YOU PRESSURIZE THE 

GREEN HYDRAULIC SYSTEM. THIS PREVENTS POSSIBLE 

INJURY. 

 

 NOTE: The Green hydraulic system is pressurized to bleed the brakes. 

 K. BITE Test 

    Page 10 of 11
REFERENCE: APPENDIX 1 AOT A330‐32A‐3256    PART 2

    Page 11 of 11

 (1) Do a BITE test of the Normal Extension and Retraction System (Ref. AMM TASK 

32-31-00-740-801). 

 (2) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-801). 

 (3) Do a BITE test of the TPIS if applicable (Ref. AMM TASK 32-49-00-740-801). 

 L. Test 

WARNING: THE MLG BOGIE PITCH TRIMMER CAN CAUSE THE MLG BOGIE 

TO TURN. MAKE SURE THAT THE TRAVEL RANGE(S) OF THE 

MLG BOGIE(S) IS (ARE) CLEAR, BEFORE YOU PRESSURIZE THE 

GREEN HYDRAULIC SYSTEM. THIS PREVENTS POSSIBLE 

INJURY. 

(1) Make sure that the Green hydraulic system is pressurized (Ref. AMM TASK 29-

00-00-863-801). 

(2) Make sure that the MLG bogie beam is pressurized in its trailed position. 

(3) Do a functional test of the tachometers (Ref. AMM TASK 32-42-00-720-801). 

(4) Do an operational test of the brake fans if applicable (Ref. AMM TASK 32-48-51-

400-801). 

 M. Close-up 

 (1) Lower the aircraft off the jacks (Ref. AMM TASK 07-11-00-586-801). 

 (2) Do the ground configuration after flight configuration (Ref. AMM TASK 32-00-00-

860-805). 

 N. Close access 

 (1) Remove all the fixtures, tools, test and support equipment used during this 

procedure.