7 DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2003 All rights reserved

This summary is for information only

and is not approved for modification of the aircraf

ATA SYSTEM : 32

TITLE : LANDING GEAR - MLG -INSPECTION OF MLG RETRACTION ACTUATOR 

MODIFICATION No. : None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

A rupture of a MLG retraction actuator piston rod-end has occurre

in-service A330 aircraft.

A longitudinal crack has also been found on the chromed part of a 

actuator piston rod. Investigations indicate that the crack start

of corrosion pitting within the piston bore.

All Operator Telex No.A340-32A4211 was issued for an ultrasonic i

the retraction actuator piston rod that has been in service for m

years.

This Service Bulletin has been issued to advise operators of the 

Messier-Dowty Service Bulletin A33/34-32-222. The Messier-Dowty Se

is for a visual inspection of the chromed part of the piston rods 

inspection of the inner surface of the piston rods for corrosion 

cracks of piston rods that have been in service for three years o

The accomplishment of this Service Bulletin makes sure that the M

actuator rods have no cracks and are free of any internal pitting 

cause cracks.

It is recommended to accomplish this Service Bulletin within four 

the date of receipt of the Service Bulletin or 250 FC or 1400 FH, 

date of the last inspection that was done in accordance with AOT A

whichever occurs first. Repeat inspections are to be done at ever

250FC or four months, whichever occurs first.

It is anticipated that the accomplishment of this Service Bulleti

mandatory.

EVALUATION TABLE

COMPLIANCE Recommended CANCELS INSPECTION S

Potential AD Yes A/C OPERATION AFFECT
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

EFFECTIVITY

This Service Bulletin is applicable to these operators :

39Z 50Z ACA AFR AJM ALK ARG AUA B3R BOE BUB BWA CAL CES CPA CRX CX

IBE KAC LAN M3R MAU MSR OAL PAL QAF R3L RJA SAA SAS SIA TAP THT T

CONCURRENT REQUIREMENTS

None

REFERENCES/REPERCUSSIONS

TFU : 32.31.46.008

OEB : None

AOT : A340-32A4211

SIL : None

LIFE LIMIT : None

LINE MAINTENANCE AFFECTED : No

OTHERS : OIT 999.0129/03/CL

NATURE OF THE WORK

AIRCRAFT : Yes

EQUIPMENT : No

HARD : No

SOFT : No

OBRM : No

MANPOWER

Inspection access

NOTE : For the inspection manhours refer to Messier-Dowty Service 

A33/34-32-222.

MATERIAL INFORMATION

AIRCRAFT DATA

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

2
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

3
7 DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2003 All rights reserved

ATA SYSTEM : 32

TITLE : LANDING GEAR - MLG -INSPECTION OF MLG RETRACTION ACTUATOR 

MODIFICATION No. : None

This document contains AIRBUS PROPRIETARY INFORMATION and shall a

remain the property of AIRBUS; no intellectual property right or 

granted by AIRBUS in connection with any information contained in 

delivered on the express condition that said document and the inf

contained in it shall be treated as confidential, shall not be us

purpose other than that for which it is hereby delivered. It shal

disclosed in whole or in part to third parties and shall not be d

any manner (except for the purposes of performing the tasks descr

and provided that any recipient of such document shall comply wit

conditions herein), without AIRBUS' prior written consent.

1. PLANNING INFORMATION

A. EFFECTIVITY

(1) Models

340-211 340-212 340-213 340-311 340-312 340-313

(2) Aircraft

(a) Effectivity by MSN

This Service Bulletin is applicable to aircraft 

0002-0009 0011 0013-0016 0018-0029 0031-0035 00

0044 0046-0049 0051-0053 0056-0058 0061 0063 00

0078-0081 0084 0085 0088-0091 0093 0094 0097 010

0114 0115 0117 0123 0125 0126 0128 0129 0131 01

0141 0142 0145-0147 0149-0152 0154 0156-0161 01

0166-0170 0173-0176 0178-0180 0182 0185-0187 019

0196 0197 0199 0201 0202 0204 0207 0208 0210 02

0221 0225 0227 0228 0233 0235-0237 0239 0242 024

0252 0257 0260 0263 0264 0268 0270 0273 0274 02

0289 0292 0297 0302 0304 0307 0310 0318 0319 03

0329 0331 0332 0335 0347 0352 0354 0355 0359 03

0374 0377-0379 0381 0385 0387 0390 0395 0399 040

0413-0415 0424 0429 0430 0433-0435 0438 0442 044

0459 0467 0470 0474 0483 0528 0538 0541 0544-054

0559 0561 0562 0582 0585 0590 0598
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

OPERATOR MSN

39Z 0151

50Z 0009

ACA 0088 0150 0154 0167 0170 0175 0179 0

AFR 0005 0007 0029 0049 0078 0084 0168 0

0210 0237 0245 0246 0260 0289 0307 0

0377 0399

AJM 0048 0216 0257

ALK 0032 0033 0034

ARG 0063 0074 0080 0085

AUA 0075 0081 0169 0263

B3R 0046 0204

BOE 0117 0139 0149 0163 0166 0185 0190 0

0528

BUB 0031

BWA 0093

CAL 0402 0406 0411 0415 0433 0541

CES 0129 0131 0141 0161 0182

CPA 0123 0126 0128 0136 0137 0142 0147 0

0218 0220 0227 0228 0381

CRX 0538 0545 0546 0556 0559 0561 0562 0

CXN 0192 0199 0201 0242 0243 0264

DLH 0006 0020 0021 0024 0027 0028 0035 0

0053 0056 0135 0158 0213 0233 0252 0

0321 0325 0327 0335 0347 0352 0354 0

0434 0447

F2I 0367 0374

GFA 0039 0040 0097 0103 0133 0212 0215

IBE 0125 0134 0145 0146 0193 0197 0217 0

0329 0332 0378 0387 0414 0459 0474 0

KAC 0089 0090 0101 0104

LAN 0359 0363 0429 0442

M3R 0061

MAU 0076 0094 0152 0194 0268

2
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

(c) Effectivity by MSN and Kit/Configuration

None

(3) Spares

Refer to the Messier-Dowty Service Bulletin A33/34-3

B. CONCURRENT REQUIREMENTS

None

C. REASON

(1) History

(a) A rupture of a MLG retraction actuator piston ro

occurred on a in-service A330 aircraft.

A longitudinal crack has also been found on the 

of a retraction actuator piston rod. Investigat

that the crack started from a line of corrosion 

the piston rod bore.

(b) All Operator Telex No.A340-32A4211 has been iss

operators to carry out an ultrasonic inspection 

retraction actuator piston rods that have been 

more than six years.

(2) Objective/Action

This Service Bulletin has been issued to advise opera

issue of the Messier-Dowty Service Bulletin A33/34-3

R3L 0004

RJA 0014 0022 0038 0043

SAA 0008 0011 0018 0019 0544 0582 0590

SAS 0413 0424 0430 0435 0450 0467 0470

SIA 0554

TAP 0041 0044 0079 0091

THT 0385 0395 0438 0446

THY 0023 0025 0057 0115 0180 0270 0331

VIR 0002 0003 0013 0015 0016 0058 0114 0

3
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

(a) The accomplishment of this Service Bulletin make

the MLG retraction actuator piston rods have no 

free of any internal pitting that could cause c

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

(1) Get access to the MLG retraction actuator rod (LH and 

NOTE : It is not necessary to raise the aircraft on j

inspection.

(2) Do a visual inspection of the chromed area of the act

rod for cracks in accordance with the Messier-Dowty 

Bulletin A33/34-32-222.

(3) Do a ultrasonic inspection of the inner surface of t

actuator piston-rod for pitting corrosion and/or cra

accordance with the Messier-Dowty Service Bulletin A

(4) If cracks or pitting are found replace the retractio

(5) If cracks or corrosion pitting are not found, do a r

inspection at the specified intervals given in this 

Bulletin.

E. COMPLIANCE

(1) Classification

Recommended

(2) Accomplishment Timescale

NOTE : The threshold of three years is from the date 

retraction actuator piston rods first entry i

If spare piston rods of the same part number 

installed then the threshold is three years fr

the first installation of the piston rods on a

4
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

(c) It is anticipated that the accomplishment of th

Bulletin will be made mandatory.

F. APPROVAL

The technical content of this Service Bulletin has been a

the authority of the DGAC Design Organisation Approval No

If an aircraft listed in the effectivity has a modificatio

embodied that is not of AIRBUS origin, and which affects 

this Service Bulletin, the operator is responsible for ob

approval by its airworthiness authority for any adaptatio

before incorporation of the Service Bulletin.

G. MANPOWER

The manpower estimates given in this Service Bulletin are 

direct labour cost to do the work. These estimates assume 

will be done by experienced personnel, and may need to be 

upwards to suit operator's circumstances. The estimates do 

the time to prepare, plan or inspect the work. Manufactur

procurement of parts and tools, drying times for paints, 

and general administration work are also not included.

NOTE : * For the inspection manhours refer to Messier-Dowt

Bulletin A33/34-32-222.

H. WEIGHT AND BALANCE

Not applicable

I. ELECTRICAL LOAD DATA

Not applicable

Get access 

Visual Inspection 

Ultrasonic inspection 

Close up 

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

5
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

K. PUBLICATIONS AFFECTED

None

L. INTERCHANGEABILITY/MIXABILITY

None

OPERATOR INFORMATION TELEX (OIT) : 999.0129/03/CL

6
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

(2) Price and Availability

None

B. INDUSTRY SUPPORT INFORMATION

Refer to the Vendor Service Bulletin (VSB) for the indust

terms.

C. LIST OF COMPONENTS

None

D. LIST OF MATERIALS — OPERATOR SUPPLIED

(1) Consumable Materials

(2) Components

None

E. PARTS TO BE RE—IDENTIFIED BY THE OPERATOR

None

F. TOOLING — PRICE AND AVAILABILITY

None

G. SPECIAL TOOLS

None

DESCRIPTION REFERENCE TO CML

MAT. No.

QTY PER A/C 

Cleaning agent 11-026 As required

7
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

This Page Intentionally Left Blank

8
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

— THE FLIGHT CONTROL SURFACES

— THE LANDING GEAR AND RELATED DOORS

— COMPONENTS THAT MOVE.

WARNING : MAKE SURE THAT THE GROUND SAFETY LOCKS ARE CORRE

ON THE LANDING GEAR. THIS PREVENTS UNWANTED MOV

LANDING GEAR.

WARNING : MAKE SURE THAT YOU OBEY ALL WARNINGS AND THE CAU

IN THE REFERENCED PROCEDURES

(1) Preparation

(a) Make sure that the aircraft is electrically grou

AMM 24-00-00 Page block 301).

(b) Open and safety the main gear doors, refer to AM

Page block 201.

(c) Put access steps in position, as required.

(d) Make sure that the piston rod of the retraction 

clean, use Cleaning agent (Mat No. 11-026) , as 

(2) Standard Practices

None

B. INSPECTION

(1) Retraction Actuator - Piston Rod Inspection (LH and 

Refer to Figure 1 , Sheet 1 , Sheet 2 and the Inspe

Chart Figure 2

(a) Do a detailed visual inspection of the chromed 

actuator rod for cracks in accordance with the M

Service Bulletin A33/34-32-222.

(b) At the rod end do an ultrasonic inspection of t

surface of the piston rod for corrosion pitting 

in accordance with the Messier-Dowty Service Bu

A33/34-32-222.

9
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

None

D. CLOSE UP

(1) Make sure that the work area is clean and clear of to

items of equipment.

(2) Remove the access steps.

(3) Close the main gear doors, refer to AMM 32-12-00 Pag

E. DOCUMENTATION

Please report all findings (including no findings) to AIR

Write in the applicable aircraft records that you have don

given in the Service Bulletin.

10
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

Figure 1 Sheet 1

MLG (LH and RH) Retraction Actuator - Piston Rod Inspec

11
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

Figure 1 Sheet 2

MLG (LH and RH) Retraction Actuator - Piston Rod Inspec

12
DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2003 All rights reserved

Figure 2 Sheet 1

MLG Retraction Actuator Piston Rod - Inspection Flow C

13
7 DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2003 All rights reserved

A - SB WILL BE embodied............. YES/NO (if NO p

If YES, aircraft concerned (as per SB effectivity by default) and 

(month/year) of embodiment:...................

.................................

.................................

B - SB HAS BEEN embodied on aircraft:..............

.................................

.................................

Operator comments:.......................

................................

................................

From Airline:..........................

Name/Title:...........................

Signature:.............. Date:......

If operational documentation is affected (see Paragraph 1.K of th

information is needed prior to next normal revision or prior to S

please indicate required service(s):

Either: Advance Data..................... YE

Or : Intermediate/Temporary revision............ YE

Important Information: This SB will only be incorporated in your m

operational documentation if this sheet is returned to Airbus and 

duly authorised representative. With the next feasible revision, 

result in

- updating of maintenance documentation to show pre and post S

- updating of maintenance and operational documentation to show 

after embodiment.

If this SB requires previous or simultaneous accomplishment of ot

Airbus shall automatically include them in the manual revisions. 

00-037 for detailed information.

Please return this completed sheet to:

 AIRBUS

 CUSTOMER SERVICES DIRECTORATE

 1 Rond Point Maurice Bellonte

 31707 BLAGNAC CEDEX FRANCE

 Attn: SDC32 Technical Data and Documentation Services

 FAX: (+33) 5 61 93 28 06

 or via your Resident Customer Support Office.

 Alternatively, SB lists via letters or fax are also accepted.
7 DATE : Dec 17/03 SERVICE BULLETIN No. : A340

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2003 All rights reserved

(Please rate on a scale of 1 to 4, with 4 being the 

- Quality rating of this SB 

- Quality rating of the Accomplishment Instructions 

- Quality rating of the Illustrations 

- Is this SB easy to understand ? 

If you have had difficulties in the accomplishment of this SB plea

the area(s) and give a short description of the issue.

Planning Material Instruct

X Effectivity X Kit content X Preparat

X Reason X List of Materials X Mod/Insp

X Manpower Operator Supplied X Test

X References X Re-identification X Close-Up

X Publication X Tooling X Illustra

Comments :

Operator : Date:

Name/Title :

Please return this form to :

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC

Attn : SET1 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.