@A310

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 32

TITLE: LANDING GEAR - NORMAL EXTENSION AND RETRACTION -

INSPECTION OF UPLOCK SPRINGS

MODIFICATION No.: None

This page transmits Revision No.01 of Service Bulletin No.A310-32-2147

ADDITIONAL WORK

**CONF ALL

No additional work is required by this revision for aircraft modified by any previous issue.

REASON

Revision No. 01 issued:

- modify table 1 threshold value column and repetitive interval value column.

- modify table 2 threshold value column and repetitive interval value column.

- update figures.

CHANGES

SUMMARY

EFFECTIVITY OPERATOR LIST UPDATED R

Fig. A-FSAAA FIGURE SOLUTION UPDATED R

Fig. A-FSAAA Sheet 01 SHEET UPDATED R

Fig. A-FSAAA Sheet 02 SHEET DELETED D

Fig. A-FSCAA FIGURE SOLUTION ADDED N

Fig. A-FSCAA Sheet 01 SHEET ADDED N

Fig. A-FSBAA FIGURE SOLUTION UPDATED R

Fig. A-FSBAA Sheet 01 SHEET UPDATED R

Fig. A-FSBAA Sheet 02 SHEET DELETED D

Fig. A-FSDAA FIGURE SOLUTION ADDED N

Fig. A-FSDAA Sheet 01 SHEET ADDED N

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 1

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SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

PLANNING INFORMATION

EFFECTIVITY EFFECTIVITY RELATED INFORMATION

UPDATED

R

Configuration definition

CONF 001 CONFIGURATION DEFINITION UPDATED R

COMPLIANCE

Accomplishment Timescale ACCOMPLISHMENT TIMESCALE UPDATED

CONFIGURATION UPDATED

R

ACCOMPLISHMENT INSTRUCTIONS

Fig. A-FBAAA

Fig. A-FBAAA Sheet 01 SHEET UPDATED R

Fig. A-FBAAA Sheet 02 SHEET UPDATED R

Fig. A-FBBAA

Fig. A-FBBAA Sheet 01 SHEET UPDATED R

Fig. A-FBBAA Sheet 02 SHEET UPDATED R

FILLING INSTRUCTIONS

This Service Bulletin has been generated electronically and is reissued as a complete document.

Replace the complete document.

Put this Revision Transmittal Sheet in front of the Service Bulletin.

HISTORY OF PREVIOUS REVISIONS

No previous revision

REVISION SEQUENCE

ORIGINAL: Jul 20/12

REVISION No. : 01 - Apr 25/13

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 2

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@A310

SERVICE BULLETIN

SUMMARY

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

This summary is for information only and is not approved for modification of the aircraft.

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 32

TITLE: LANDING GEAR - NORMAL EXTENSION AND RETRACTION -

INSPECTION OF UPLOCK SPRINGS

**CONF ALL

MODIFICATIONS

None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

Airbus has analysed in-service events reported by Messier-Bugatti-Dowty concerning some cases of

NLG and MLG Door and Leg Uplock spring ruptures on A300, A310 or A300-600 aircraft.

Springs within the uplock are used to either lock the gear or the door in the up position or to participate

in emergency mechanical unlocking.

The springs are positioned in pairs and in case of rupture of one spring the other one remains to fulfil

the function.

The rupture of one spring has no consequence on the operation of the uplock whereas the rupture of

both springs will disable the locking function or the emergency unlocking function..

This Service Bulletin is published to advise all operators of the issue of MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206 and MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-880.

This Service Bulletin includes a detailed inspection of the NLG and MLG Door and Leg Uplock springs

and replacement in case of finding.

Accomplishment of this Service Bulletin will ensure correct operation of the NLG and MLG Door and

Leg Uplocks.

GENERAL EVALUATION

EVALUATION TABLE

COMPLIANCE MANDATORY (1) CANCELS INSPECTION SB NO

POTENTIAL AD YES A/C OPERATION AFFECTED NO

RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 1

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SERVICE BULLETIN

SUMMARY

EVALUATION TABLE

COST SAVING NO ETOPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED YES

A/C JACKING YES

NOTE (1): Service Bulletin must be accomplished.

NOTE: A/C jacking is necessary if functional tests are required.

MATERIAL PRICE INFORMATION

No Material

EFFECTIVITY

This Service Bulletin is applicable to this (these) operator(s) :

18T 19U 52X 58X 82Z 83V 85W 85Z 99Y AFG AIB AIC BAF

BBC C9L CFC DGA FDX G2X G8E GAF HFY HJI IRA IRM IYE

JAV K1P KAC KZU MGL PCA PIA QAF R1T RJA ROT RZO SBI

SGX SUD THY TSC UBD UZB WHT

CONCURRENT REQUIREMENTS

None

REFERENCES / REPERCUSSIONS

TFU None

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER None

NATURE OF THE WORK

AIRCRAFT YES

EQUIPMENT NO

HARD NO

SOFT NO

OBRM NO

MANPOWER

Task 322147-832-801-001: Inspection

TOTAL MANHOURS 9.00

ELAPSED TIME (HOURS) 9.00

Additional manhours related to Vendor SB; refer to:

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 2

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@A310

SERVICE BULLETIN

SUMMARY

Task 322147-832-801-001: Inspection

Do a Detailed Inspection of the MLG and MLG Door

Uplock Springs

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880

Do a Detailed Inspection of the NLG and NLG Door

Uplock Springs

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880

APPENDICES

Appendix 01 : Inspection Report

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 3

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SERVICE BULLETIN

SUMMARY

**CONF ALL

A

LH SIDE SHOWN

RH SIDE SYMMETRICAL

A

A

B

FR47

FR50

FR54

B

B

A A NOTE:

01

01

DEPENDING ON THE PN, THERE ARE 1 PAIR OF

SPRINGS OR 2 PAIRS OF SPRINGS AT THIS POSITION

FREE FALL SPRINGS

SPRINGS ATTACHED TO THE HOOK

(HOOK SPRINGS) AND 

SPRINGS ATTACHED TO THE LEVER

A

Z147 Z148 − 

(LEVER SPRINGS)

B_SB_322147_5_SAAA_01_09

Figure A-FSAAA - Sheet 01

Main Landing Gear Uplock

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 4

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SERVICE BULLETIN

SUMMARY

**CONF ALL

A

FR47

FR50

FR54

HOOK SPRINGS TO BE INSPECTED

LH SIDE SHOWN

RH SIDE SYMMETRICAL

B

B

B

A A

A

A

A

Z147 Z148 − 

B_SB_322147_5_SCAA_01_00

Figure A-FSCAA - Sheet 01

Main Landing Gear Door Uplock

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 5

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SERVICE BULLETIN

SUMMARY

**CONF ALL

Z123 Z124 − 

A

A

A

A

A A

PAIR OF HOOK SPRINGS TO BE INSPECTED

PAIR OF FREE FALL SPRINGS TO BE INSPECTED

B_SB_322147_5_SBAA_01_02

Figure A-FSBAA - Sheet 01

Nose Landing Gear Uplock

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 6

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SERVICE BULLETIN

SUMMARY

**CONF ALL

Z123 Z124 − 

HOOK SPRING TO BE INSPECTED

A

A

A

A

A A

B_SB_322147_5_SDAA_01_00

Figure A-FSDAA - Sheet 01

Nose Landing Gear Door Uplock

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 7

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SERVICE BULLETIN

SUMMARY

This Page Intentionally Left Blank

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 8

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@A310

SERVICE BULLETIN

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 32

TITLE: LANDING GEAR - NORMAL EXTENSION AND RETRACTION -

INSPECTION OF UPLOCK SPRINGS

MODIFICATION No.: None

This document contains AIRBUS PROPRIETARY INFORMATION and shall at all times remain the

property of AIRBUS; no intellectual property right or licence is granted by AIRBUS in connection with

any information contained in it. It is delivered on the express condition that said document and the

information contained in it shall be treated as confidential, shall not be used for any purpose other than

that for which it is hereby delivered. It shall not be disclosed in whole or in part to third parties and shall

not be duplicated in any manner (except for the purposes of performing the tasks described hereunder

and provided that any recipient of such document shall comply with the conditions herein), without

AIRBUS prior written consent.

1. PLANNING INFORMATION

**CONF ALL

A. EFFECTIVITY

(1) Models

310-203 310-204 310-221 310-222 310-304 310-308 310-322 310-324

310-325

(2) Effectivity by MSN

0162 0191 0201 0217 0224 0230 0233 0237 0241 0245 0248 0251 0254 0257 0260

0264 0267 0273 0278 0281 0283 0288 0297 0303 0313 0316 0318 0326 0331 0333

0335 0338-0339 0342-0343 0345-0346 0353 0355-0357 0359-0360 0362 0364 0367

0369-0370 0372 0375 0378-0379 0389-0390 0392 0394 0397 0399-0400 0406-0407

0410 0413 0418-0419 0421-0422 0425 0427-0429 0431 0434 0436-0437 0439 0441

0444-0449 0452 0454 0456-0458 0467 0472-0473 0475-0476 0478 0480-0485

0488-0492 0494-0500 0502-0503 0519-0520 0522-0524 0526-0527 0534 0537-0539

0541-0542 0544-0545 0547 0549-0552 0562 0564-0565 0567-0568 0571 0573-0574

0576 0585-0588 0590-0595 0597 0599-0600 0620 0622 0624 0636 0638 0644

0646-0649 0651-0654 0656 0658 0660-0661 0663 0667 0669 0671-0672 0674 0676

0678 0682 0684 0686-0687 0689 0691 0693 0697 0700 0702 0704 0706

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 1

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SERVICE BULLETIN

(3) Effectivity by Operator

The Operator/MSN relationship is provided for information only and is correct at the time

of issue in accordance with the information available to AIRBUS. Any future changes

resulting from transfer of an aircraft from one operator to another will not be reflected in

this list unless the Service Bulletin is revised for another reason.

OPERATOR MSN

18T 0473

19U 0399

52X 0410

58X 0431

82Z 0550 0551

83V 0427 0428

85W 0684 0693 0697

85Z 0547

99Y 0489

AFG 0496 0497

AIB 0686

AIC 0392 0406 0407 0429 0538 0544 0654 0669

BAF 0367 0372

BBC 0594 0700

C9L 0652

CFC 0425 0441 0444 0446 0482

DGA 0418 0421 0422

FDX 0162 0191 0201 0217 0224 0230 0233 0237 0241 0245 0248 0251

0254 0257 0260 0264 0267 0273 0278 0281 0283 0288 0297 0303

0313 0316 0318 0326 0331 0333 0335 0339 0342 0343 0345 0346

0353 0355 0356 0359 0360 0362 0364 0369 0378 0394 0397 0400

0439 0449 0452 0454 0456 0457 0458 0467 0492 0500 0534 0539

0542 0549 0552 0593 0638

G2X 0573

G8E 0475

GAF 0434 0484 0498 0503 0522 0523

HFY 0495 0565

HJI 0413

IRA 0338 0370 0375 0379 0389 0390 0436 0671

IRM 0488 0499 0524 0537 0564 0567 0586 0595 0620

IYE 0568 0702 0704

JAV 0357 0481

K1P 0648

KAC 0647 0649 0663

KZU 0592 0622 0646

MGL 0526

PCA 0419

PIA 0585 0587 0590 0653 0656 0660 0676 0678 0682 0687 0689 0691

QAF 0667

R1T 0591

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 2

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SERVICE BULLETIN

OPERATOR MSN

RJA 0445 0490 0491

ROT 0636 0644

RZO 0571 0624 0651 0661

SBI 0520

SGX 0519 0562

SUD 0437

THY 0476 0478 0480 0502

TSC 0447 0472 0483 0485 0527 0541 0545 0588 0597 0599 0600 0658

UBD 0672 0674

UZB 0574 0576 0706

WHT 0448 0494

(4) Configuration by MSN

MSN CONFIGURATION

0162 0191 0201 0217 0224 0230 0233 0237 0241 0245 0248

0251 0254 0257 0260 0264 0267 0273 0278 0281 0283 0288

0297 0303 0313 0316 0318 0326 0331 0333 0335 0338 0339

0342 0343 0345 0346 0353 0355 0356 0357 0359 0360 0362

0364 0367 0369 0370 0372 0375 0378 0379 0389 0390 0392

0394 0397 0399 0400 0406 0407 0410 0413 0418 0419 0421

0422 0425 0427 0428 0429 0431 0434 0436 0437 0439 0441

0444 0445 0446 0447 0448 0449 0452 0454 0456 0457 0458

0467 0472 0473 0475 0476 0478 0480 0481 0482 0483 0484

0485 0488 0489 0490 0491 0492 0494 0495 0496 0497 0498

0499 0500 0502 0503 0519 0520 0522 0523 0524 0526 0527

0534 0537 0538 0539 0541 0542 0544 0545 0547 0549 0550

0551 0552 0562 0564 0565 0567 0568 0571 0573 0574 0576

0585 0586 0587 0588 0590 0591 0592 0593 0594 0595 0597

0599 0600 0620 0622 0624 0636 0638 0644 0646 0647 0648

0649 0651 0652 0653 0654 0656 0658 0660 0661 0663 0667

0669 0671 0672 0674 0676 0678 0682 0684 0686 0687 0689

0691 0693 0697 0700 0702 0704 0706

001

(5) Configuration definition

**CONF 001

Config. 001 is valid for all the aircraft given in the effectivity of this Service Bulletin as a

standard configuration.

(6) Material Effectivity

B. CONCURRENT REQUIREMENTS

None

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 3

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SERVICE BULLETIN

C. REASON

(1) History

Airbus has analysed in-service events reported by Messier-Bugatti-Dowty concerning

some cases of NLG and MLG Door and Leg Uplock spring ruptures on A300, A310 or

A300-600 aircraft.

Springs within the uplock are used to either lock the gear or the door in the up position

or to participate in emergency mechanical unlocking.

The springs are positioned in pairs and in case of rupture of one spring the other one

remains to fulfil the function.

The rupture of one spring has no consequence on the operation of the uplock whereas

the rupture of both springs will disable the locking function or the emergency unlocking

function..

(2) Objective/Action

This Service Bulletin is published to advise all operators of the issue of MESSIERBUGATTI-DOWTY Service Bulletin No. 470-32-206 and MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880.

This Service Bulletin includes a detailed inspection of the NLG and MLG Door and Leg

Uplock springs and replacement in case of finding.

(3) Advantages

Accomplishment of this Service Bulletin will ensure correct operation of the NLG and

MLG Door and Leg Uplocks.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 322147-832-801-001: Inspection

(1) Do a Detailed Inspection of the MLG and MLG Door Uplock Springs

(2) Do a Detailed Inspection of the NLG and NLG Door Uplock Springs

(3) Replace the involved MLG door uplock

(4) Replace the involved MLG uplock

(5) Replace the involved NLG door uplock

(6) Replace the involved NLG uplock

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 4

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SERVICE BULLETIN

E. COMPLIANCE

(1) Classification

MANDATORY: Service Bulletin must be accomplished.

(2) Accomplishment Timescale

TABLE 1 : DETAILED INSPECTION OF MLG AND MLG DOOR UPLOCK SPRINGS

Condition Action COMPLIANCE TIME

THRESHOLD (whichever

occurs first)

GRACE PERIOD

Repetitive

Interval

Config.001 Apply SUBTASK

322147-832-001 001

Do a Detailed

Inspection of the MLG

and MLG Door Uplock

Springs

18 months from the Service

Bulletin issuance date

None Repeat

this

inspection

SB every

18

months

Spring is

not broken

and not

damaged

None None Repeat

this

inspection

SB every

18

months

Hook

spring is

broken or

damaged

on MLG

door

uplock

Apply SUBTASK

322147-833-001 001

Replace the involved

MLG door uplock

before the next flight 2 months Repeat

this

inspection

SB every

18

months

Free fall

spring is

broken or

damaged

on MLG

uplock

Apply SUBTASK

322147-833-002 001

Replace the involved

MLG uplock

before the next flight 1,000 FC with

inspection every 50 FC,

refer to SUBTASK

322147-832-001-001

para. (1).(b)

Repeat

this

inspection

SB every

18

months

Two free

fall springs

are broken

or

damaged

on MLG

uplock

Apply SUBTASK

322147-833-002 001

Replace the involved

MLG uplock

before the next flight None Repeat

this

inspection

SB every

18

months

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 5

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SERVICE BULLETIN

TABLE 1 : DETAILED INSPECTION OF MLG AND MLG DOOR UPLOCK SPRINGS

Condition Action COMPLIANCE TIME

THRESHOLD (whichever

occurs first)

GRACE PERIOD

Repetitive

Interval

Hook

and/or

Lever

springs are

broken or

damaged

on MLG

uplock

Apply SUBTASK

322147-833-002 001

Replace the involved

MLG uplock

before the next flight 1,000 FC with

inspection every 50 FC,

refer to SUBTASK

322147-832-001-001

para. (1).(b)

Repeat

this

inspection

SB every

18

months

Table 1

TABLE 2 : DETAILED INSPECTION OF NLG AND NLG DOOR UPLOCK SPRINGS

Condition Action COMPLIANCE TIME

THRESHOLD (whichever

occurs first)

GRACE PERIOD

Repetitive

Interval

Config.001 Apply SUBTASK

322147-832-002 001

Do a Detailed

Inspection of the NLG

and NLG Door Uplock

Springs

18 months from the Service

Bulletin issuance date

None Repeat

this

inspection

SB every

18 months

Spring is

not broken

and not

damaged

None None Repeat

this

inspection

SB every

18 months

Hook

spring is

broken or

damaged

on NLG

door

uplock

Apply SUBTASK

322147-833-003 001

Replace the involved

NLG door uplock

before the next flight 2 months Repeat

this

inspection

SB every

18 months

Free fall

spring is

broken or

damaged

on NLG

uplock

Apply SUBTASK

322147-833-004 001

Replace the involved

NLG uplock

before the next flight 1,000 FC with

inspection every 50

FC, refer to SUBTASK

322147-832-002-001

para. (2).(b)

Repeat

this

inspection

SB every

18 months

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 6

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SERVICE BULLETIN

TABLE 2 : DETAILED INSPECTION OF NLG AND NLG DOOR UPLOCK SPRINGS

Condition Action COMPLIANCE TIME

THRESHOLD (whichever

occurs first)

GRACE PERIOD

Repetitive

Interval

Two free

fall springs

are broken

or

damaged

on NLG

uplock

Apply SUBTASK

322147-833-004 001

Replace the involved

NLG uplock

before the next flight None Repeat

this

inspection

SB every

18 months

Hook

spring is

broken or

damaged

on NLG

uplock

Apply SUBTASK

322147-833-004 001

Replace the involved

NLG uplock

before the next flight 1,000 FC with

inspection every 50

FC, refer to SUBTASK

322147-832-002-001

para. (2).(b)

Repeat

this

inspection

SB every

18 months

Table 2

This Service Bulletin has been classified Mandatory. It is expected that an Airworthiness

Directive (AD) published by the European Aviation Safety Agency (EASA) will be issued

to confirm this classification. It is anticipated that the AD will confirm the (thresholds

and/or intervals and/or date) given above but reference should be made to the AD for

confirmation of the mandated accomplishment timescale.

F. APPROVAL

The technical content of this document is approved under the authority of Design

Organisation Approval No. EASA.21J.031.

If an aircraft listed in the effectivity has a modification or repair embodied that is not of

AIRBUS origin, and which affects the content of this Service Bulletin, the operator is

responsible for obtaining approval by its airworthiness authority for any adaptation necessary

before incorporation of the Service Bulletin.

G. MANPOWER

The manpower estimates given in this Service Bulletin are based on the direct labor cost to

do the work. These estimates assume that the work will be done by experienced personnel,

and may need to be revised upwards to suit operator’s circumstances. The estimates do not

include the time to prepare, plan or inspect the work. Manufacture and procurement of parts

and tools, drying times for paints, sealants, etc., and general administration work are also not

included.

Task 322147-832-801-001: Inspection

Get Access 2.00

On Aircraft

Replace the involved MLG door uplock 1.00

Replace the involved MLG uplock 1.00

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 7

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SERVICE BULLETIN

Task 322147-832-801-001: Inspection

Replace the involved NLG door uplock 1.00

Replace the involved NLG uplock 1.00

Tests 1.00

Close-Up 2.00

TOTAL MANHOURS 9.00

ELAPSED TIME (HOURS) 9.00

Additional manhours related to Vendor SB; refer to:

Do a Detailed Inspection of the MLG and MLG Door

Uplock Springs

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880

Do a Detailed Inspection of the NLG and NLG Door

Uplock Springs

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 24-00-00 32-12-11 32-22-11

32-31-14 32-31-21 32-31-33

32-31-44

Elec. Std. Practices Manual (ESPM) 20-55-00

Vendor Service Bulletin (VSB) MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY

Service Bulletin No. 470-32-880

K. PUBLICATION AFFECTED

Maintenance Planning Document (MPD) 32-31-14

32-31-33

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

M. SPARES

None

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

Modification of removed equipment should be negotiated directly with MESSIERBUGATTI-DOWTY as per instructions given in Service Bulletins No. 470-32-206 and

470-32-880.

(2) Price and Availability

No AIRBUS kit will be provided.

Refer to the Vendor Service Bulletins No. 470-32-206 and 470-32-880 for the equipment

modification sales terms.

B. INDUSTRY SUPPORT INFORMATION

Refer to the MESSIER-BUGATTI-DOWTY Service Bulletins No. 470-32-206 and 470-32-880

for the industry support terms of the Vendor Service Bulletin parts and labor.

C. LIST OF COMPONENTS

No Kit

D. LIST OF MATERIALS - OPERATOR SUPPLIED

None

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

None

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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This Page Intentionally Left Blank

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 322147-832-801-001 - Inspection

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

INCLUDED IN THE REFERENCED PROCEDURES.

CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP

ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY

AND MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENANCE

WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING,

COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO

THIS:

- PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS

NECESSARY ON WIRING AND COMPONENTS.

- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND

OTHER CONTAMINATION.

THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION

AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.

IN CASE OF CONTAMINATION REFER TO ESPM 20-55-00.

Task Associated Data

Zone

123 124 147 148

Manpower

TOTAL MANHOURS 9.00

ELAPSED TIME (HOURS) 9.00

Additional manhours related to Vendor SB; refer to:

MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-206

MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-880

A. GENERAL

(1) Subtask 322147-839-001-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

(a) Write in the applicable aircraft records that you have done all the work given in this

Service Bulletin.

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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B. PREPARATION

(1) Subtask 322147-941-001-001 - Job Set-up

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 24-00-00, Page Block 301

32-12-11, Page Block 301

32-22-11, Page Block 301

32-31-14, Page Block 401

32-31-21, Page Block 401

32-31-33, Page Block 401

32-31-44, Page Block 401

(a) Make sure that the aircraft is electrically grounded (Refer to AMM 24-00-00, Page

Block 301).

(b) Put the access platform(s) in position at zones 147, 148, 123 and 124.

(c) Open the NLG doors (Refer to AMM 32-22-11, Page Block 301).

(d) Open the MLG doors (Refer to AMM 32-12-11, Page Block 301).

(e) Do the preparation procedure as specified in the removal of the MLG uplocks and

door uplocks (Refer to AMM 32-31-44, Page Block 401 and AMM 32-31-33, Page

Block 401).

(f) Do the preparation procedure as specified in the removal of the NLG uplocks and

door uplocks (Refer to AMM 32-31-21, Page Block 401 and AMM 32-31-14, Page

Block 401).

C. PROCEDURE

(1) Subtask 322147-832-001-001 - Do a Detailed Inspection of the MLG and MLG Door

Uplock Springs

Work Zones and Access Panels

Zone Access/Work location

147

148

References

Vendor Service Bulletin (VSB) MESSIER-BUGATTI-DOWTY 470-32-206

MESSIER-BUGATTI-DOWTY 470-32-880

Fig. A-FBAAA

Area to be Inspected

Sheet 01

Sheet 02

Fig. A-FFAAA

Flow Chart

Sheet 01

At the threshold given in the Planning Information Paragraph E.(2):

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(a) Do a detailed inspection of the springs of the main landing gear door uplocks in

accordance with MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-206:

refer to Fig. A-FBAAA Sheet 01, Fig. A-FBAAA Sheet 02 and Fig. A-FFAAA Sheet

01

1 If load check is incorrect:

a Apply SUBTASK 322147-833-001 001 Replace the involved MLG door

uplock

b Send inspection report to AIRBUS.

c Repeat inspection at interval given in planning information paragraph

E.(2).

2 If load check is correct:

a Send inspection report to AIRBUS.

b Repeat inspection at interval given in planning information paragraph

E.(2).

(b) Do a detailed visual inspection of the springs of the main landing gear uplocks in

accordance MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-880:

refer to Fig. A-FBAAA Sheet 01, Fig. A-FBAAA Sheet 02 and Fig. A-FFAAA Sheet

01

1 If spring is damaged:

a Apply SUBTASK 322147-833-002 001 Replace the involved MLG uplock

b Send inspection report to AIRBUS.

c Repeat inspection at interval given in planning information paragraph

E.(2).

2 If spring is not damaged

a Send inspection report to AIRBUS.

b Repeat inspection at interval given in planning information paragraph

E.(2).

(2) Subtask 322147-832-002-001 - Do a Detailed Inspection of the NLG and NLG Door

Uplock Springs

Work Zones and Access Panels

Zone Access/Work location

123

124

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

References

Vendor Service Bulletin (VSB) MESSIER-BUGATTI-DOWTY 470-32-206

MESSIER-BUGATTI-DOWTY 470-32-880

Fig. A-FBBAA

Area to be Inspected

Sheet 01

Sheet 02

Fig. A-FFAAA

Flow Chart

Sheet 01

At the threshold given in the Planning Information Paragraph E.(2):

(a) Do a detailed inspection of the springs of the nose landing gear door uplocks in

accordance with MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-206:

refer to Fig. A-FBBAA Sheet 01, Fig. A-FBBAA Sheet 02 and Fig. A-FFAAA Sheet

01

1 If load check is incorrect:

a Apply SUBTASK 322147-833-003 001 Replace the involved NLG door

uplock

b Send inspection report to AIRBUS.

c Repeat inspection at interval given in planning information paragraph

E.(2).

2 If load check is correct:

a Send inspection report to AIRBUS.

b Repeat inspection at interval given in planning information paragraph

E.(2).

(b) Do a detailed inspection of the springs of the nose landing gear uplocks in

accordance with MESSIER-BUGATTI-DOWTY Service Bulletin No. 470-32-880:

refer to Fig. A-FBBAA Sheet 01, Fig. A-FBBAA Sheet 02 and Fig. A-FFAAA Sheet

01

1 If spring is damaged:

a Apply SUBTASK 322147-833-004 001 Replace the involved NLG uplock

b Send inspection report to AIRBUS.

c Reinspect at interval given in planning information paragraph E.(2).

2 If spring is not damaged

a Send inspection report to AIRBUS.

b Reinspect at interval given in planning information paragraph E.(2).

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

(3) Subtask 322147-833-001-001 - Replace the involved MLG door uplock

Work Zones and Access Panels

Zone Access/Work location

148

147

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-31-33, Page Block 401

(a) Remove the involved MLG door uplock (Refer to AMM 32-31-33, Page Block 401.

(b) Send the involved MLG door uplock in shop for repair.

(c) Install a serviceable MLG door uplock (Refer to AMM 32-31-33, Page Block 401.

(4) Subtask 322147-833-002-001 - Replace the involved MLG uplock

Work Zones and Access Panels

Zone Access/Work location

147

148

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-31-44, Page Block 401

(a) Remove the involved MLG gear uplock (Refer to AMM 32-31-44, Page Block 401).

(b) Send the involved MLG gear uplock in shop for repair.

(c) Install a serviceable MLG gear uplock (Refer to AMM 32-31-44, Page Block 401).

(5) Subtask 322147-833-003-001 - Replace the involved NLG door uplock

Work Zones and Access Panels

Zone Access/Work location

123

124

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-31-14, Page Block 401

(a) Remove the involved NLG door uplock (Refer to AMM 32-31-14, Page Block 401).

(b) Send the involved NLG door uplock in shop for repair.

(c) Install a serviceable NLG door uplock (Refer to AMM 32-31-14, Page Block 401).

(6) Subtask 322147-833-004-001 - Replace the involved NLG uplock

Work Zones and Access Panels

Zone Access/Work location

123

124

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-31-21, Page Block 401

(a) Remove the involved NLG gear uplock (Refer to AMM 32-31-21, Page Block 401).

(b) Send the involved NLG gear uplock in shop for repair.

(c) Install a serviceable NLG gear uplock (Refer to AMM 32-31-21, Page Block 401).

D. TEST

(1) Subtask 322147-700-001-001 - Testing

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-31-14, Page Block 401

32-31-21, Page Block 401

32-31-33, Page Block 401

32-31-44, Page Block 401

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(a) If a MLG or a MLG door uplock have been replaced:

Do the test procedure as specified after the installation of MLG uplocks and door

uplocks (Refer to AMM 32-31-44, Page Block 401 and AMM 32-31-33, Page Block

401).

(b) If a NLG or a NLG door uplock have been replaced:

Do the test procedure as specified after the installation of NLG uplocks and door

uplocks (Refer to AMM 32-31-21, Page Block 401 and AMM 32-31-14, Page Block

401).

E. CLOSE-UP

(1) Subtask 322147-942-001-001 - Close-up

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 32-12-11, Page Block 301

32-22-11, Page Block 301

32-31-14, Page Block 401

32-31-21, Page Block 401

32-31-33, Page Block 401

32-31-44, Page Block 401

(a) Do the close-up procedure as specified in the installation of the MLG uplocks and

door uplocks (Refer to AMM 32-31-44, Page Block 401 and AMM 32-31-33, Page

Block 401).

(b) Do the close-up procedure as specified in the installation of the NLG uplocks and

door uplocks (Refer to AMM 32-31-21, Page Block 401 and AMM 32-31-14, Page

Block 401).

(c) Close the NLG doors (Refer to AMM 32-22-11, Page Block 301).

(d) Close the MLG doors (Refer to AMM 32-12-11, Page Block 301).

(e) Remove the access platform(s).

(f) Restore the aircraft and the systems to normal operating conditions.

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

**CONF ALL

A

LH SIDE SHOWN

RH SIDE SYMMETRICAL

A

A

B

FR47

FR50

FR54

C

C

B

B

A A NOTE:

01

01

DEPENDING ON THE PN, THERE ARE 1 PAIR OF

SPRINGS OR 2 PAIRS OF SPRINGS AT THIS POSITION

FREE FALL SPRINGS

SPRINGS ATTACHED TO THE HOOK

(HOOK SPRINGS) AND 

SPRINGS ATTACHED TO THE LEVER

A

Z147 Z148 − 

(LEVER SPRINGS)

B_SB_322147_5_BAAA_01_08

Figure A-FBAAA - Sheet 01

Area to be Inspected

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

**CONF ALL

HOOK SPRINGS TO BE INSPECTED

LH SIDE SHOWN

RH SIDE SYMMETRICAL

B

B

C

B B

B_SB_322147_5_BAAA_02_01

Figure A-FBAAA - Sheet 02

Area to be Inspected

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

**CONF ALL

Z123 Z124 − 

A

B

A

A

A

A A

PAIR OF HOOK SPRINGS TO BE INSPECTED

PAIR OF FREE FALL SPRINGS TO BE INSPECTED

B_SB_322147_5_BBAA_01_01

Figure A-FBBAA - Sheet 01

Area to be Inspected

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

**CONF ALL

HOOK SPRING TO BE INSPECTED

B

B

B B

B

B_SB_322147_5_BBAA_02_02

Figure A-FBBAA - Sheet 02

Area to be Inspected

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

**CONF ALL

QUESTION

ACTION

FINDING

YES OR DAMAGED

SPRINGS BROKEN

AS DESCRIBED IN SUBTASKS 322147−832−001−001

NO

SHOP FOR REPAIR AND REPLACE IT

SEND THE INVOLVED UPLOCK IN

AS DESCRIBED IN SUBTASK(S)

322147−833−001−001

AND/OR 322147−833−002−001

AND/OR 322147−833−003−001

AND/OR 322147−833−004−001

AND DOOR UPLOCK SPRINGS

AT THRESHOLD GIVEN IN THE PLANNING INFORMATION PARAGRAPH 1.E.(2).

DO A DETAILED INSPECTION OF THE MLG AND NLG UPLOCK

NLG UPLOCK AND DOOR UPLOCK SPRINGS

DO A DETAILED INSPECTION OF THE MLG AND 

AND 322147−832−002−001

RE−INSPECT AT INTERVAL GIVEN

IN THE PLANNING INFORMATION

PARAGRAPH 1.E.(2).

B_SB_322147_5_FAAA_01_01

Figure A-FFAAA - Sheet 01

Flow Chart

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

Appendix 01 : Inspection Report

**CONF ALL

The results of the inspection, including no findings, replacement or actions to be done, must be

forwarded to airbus dept. SEEL3, on the attached inspection report.

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

Appendix 01 : Inspection Report

**CONF ALL

INSPECTION REPORT

SERVICE BULLETIN No. :

A/C MSN :

FLIGHT CYCLES :

FLIGHT HOURS :

A310−32−2147

DATE OF INSPECTION :

RETURN TO :

AIRBUS

CUSTOMER SERVICES ENGINEERING − SEEL3

LANDING GEAR SYSTEMS A330/A340 & WIDE BODY

INSPECTION METHOD :

1 ROND POINT MAURICE BELLONTE

31707 BLAGNAC CEDEX

FRANCE

FAX +33 (0)5 61 36 14

QUESTIONS

UPLOCKS

SPRINGS BROKEN

UPLOCK REPLACED

OR DAMAGED

MLG UPLOCK YES NO YES NO

MLG DOOR UPLOCK YES NO YES NO

NLG UPLOCK YES NO YES NO

NLG DOOR UPLOCK YES NO YES NO

WHICH SPRING ?

(FREE FALL, HOOK,

LEVER)

B_SB_322147_5_RAAA_01_02

Figure A-FRAAA - Sheet 01

Inspection Report

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

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SERVICE BULLETIN

REPORTING SHEET

TITLE: LANDING GEAR - NORMAL EXTENSION AND RETRACTION -

INSPECTION OF UPLOCK SPRINGS

MODIFICATION No.: None

Please complete the appropriate item (A or B):

A - SB WILL BE embodied YES/NO (if NO please comment)

If YES, aircraft concerned (as per SB effectivity by default) and planned dates (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 this SB): If information is needed prior to

next normal revision or prior to SB embodiment, please indicate required service(s):

Either: Modification Operational Impact (MOI), if available YES/NO

Or : Intermediate revision YES/NO

Important Information: This SB will only be incorporated in your maintenance and operational

documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With

the next feasible revision, this will result in

- Updating of maintenance documentation to show pre and post SB data.

- Updating of maintenance and operational documentation to show post SB data after embodiment.

If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically

include them in the manual revisions. Refer to SIL 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

e-mail: sb.reporting@airbus.com

or via your Resident Customer Support Office.

Alternatively, SB lists via letters or fax are also accepted.

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 1

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SERVICE BULLETIN

QUALITY PERCEPTION FORM

Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data

that you provide us will be used to analyse areas of difficulties and to take corrective action to further

improve the quality of our Service Bulletins.

We thank you for the time you have taken in completing this form.

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

- Quality rating of this SB 4321

- Quality rating of the Accomplishment Instructions 4321

- Quality rating of the Illustrations 4321

- Is this SB easy to understand ? Y/N

If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a

short description of the issue.

Planning Material Instructions

X Effectivity X Kit content X Preparation

X Reason X List of Materials Operator Supplied X Mod/Inspection

X Manpower X Industry support X Test

X References X Re-identification X Close-Up

X Publication X Tooling X Illustrations

Comments:

Operator: Date:

Name/Title:

Please return this form to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn : SEM4 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.

DATE: Jul 20/12 SERVICE BULLETIN No.: A310-32-2147

REVISION No.: 01 - Apr 25/13 Page: 1

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