7 DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2007 All rights reserved

This summary is for information only

and is not approved for modification of the aircraf

MANDATORY MANDATORY MAND

ATA SYSTEM : 57

TITLE : WINGS - MAIN LANDING GEAR ATTACHMENT - INSPECTION OF THE M

BEARING FORWARD LUG

MODIFICATION No. : None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

During routine maintenance, a crack has been found visually in th

of the MLG rib 5 aft bearing attachment on two A310 in-service ai

concerned aircraft had accumulated 24,000 Flight Cycles (FC) and 

the time of finding (Refer to OIT 999.0115/06).

In both cases the cracks extended through the entire thickness of 

lug. The examination of the cracked ribs has confirmed that the cr

due to the presence of pitting corrosion in the forward lug holes

corner crack sites were also identified within the corroded regio

the crack. Also on both aircraft medium to heavy corrosion was fo

forward lugs on the opposite wing after removal of the bushes.

As an interim measure the Alert Service Bulletin (ASB) A300-57A61

to introduce a repetitive Detailed Visual Inspection (DVI) of the 

the MLG Rib 5 aft bearing attachment.

This Inspection Service Bulletin introduces a repetitive inspecti

detect a crack in the forward lug of the RH and LH MLG Rib 5 aft 

attachment.

Operators now have the choice to perform an ultrasonic inspection 

The ultrasonic inspection will detect any crack at an early stage 

risk of extensive repairs. This earlier crack detection is not pos

DVI.

If no crack is found the operator has the option to embody the mo

Service Bulletin A300-57-6106 (Mod No. 13348H5689) or to perform 

inspections. The embodiment of Service Bulletin A300-57-6106 (Mod 

13348H5689) is strongly recommended and will cancel the inspectio

of this Service Bulletin.
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

The repeat inspections will make sure that any crack in the inspe

the forward lug of the MLG rib 5 aft bearing attachment will be i

EFFECTIVITY

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

65X AAL AAW ABD AHK AMU CAL CES CSN DLH EGN F2I FDX GXY IRA JAL KA

MSR OAL OHY QTR SUD TAR THA UPS

CONCURRENT REQUIREMENTS

It is recommended that this Service Bulletin can be done at the s

Service Bulletin No. A300-57-6058

REFERENCES/REPERCUSSIONS

TFU : 57.51.34.004

OEB : None

AOT : None

SIL : None

LIFE LIMIT : None

LINE MAINTENANCE AFFECTED : No

OTHERS : OIT SE 999.0115/06

NATURE OF THE WORK

AIRCRAFT : Yes

EQUIPMENT : No

EVALUATION TABLE

COMPLIANCE Mandatory CANCELS INSPECTION S

POTENTIAL AD Yes A/C OPERATION AFFECT

RELIABILITY AFFECTED No PAX COMFORT AFFECTED 

COST SAVING No ETOPS AFFECTED 

STRUCTURAL LIFE EXTN No VENDOR SB INVOLVED 

KIT PRICE (USD) No AIRBUS kit

2
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

Config. 01 Detailed Visual Inspection

MATERIAL INFORMATION

AIRCRAFT DATA

No AIRBUS kit is required for the accomplishment of this Serv

APPENDICES

Appendix 01 - Inspection Report

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

3
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

4
7 DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2007 All rights reserved

MANDATORY MANDATORY MAND

ATA SYSTEM : 57

TITLE : WINGS - MAIN LANDING GEAR ATTACHMENT - INSPECTION OF THE M

BEARING FORWARD LUG

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

B4-601 B4-603 B4-605R B4-620 B4-622 B4-622R C4-605R/

F4-605R F4-622R

(2) Aircraft

(a) Effectivity by MSN

This Service Bulletin is applicable to aircraft 

0252 0284 0294 0301 0307 0312 0317 0321 0336 034

0351 0354 0358 0361 0365 0368 0377 0380 0384 03

0398 0401 0405 0408 0411 0414 0417 0423 0459-04

0474 0477 0479 0505-0518 0521 0525 0529 0530 05

0540 0543 0546 0553-0561 0563 0566 0569 0572 05

0581 0582 0584 0601-0619 0621 0623 0625-0633 06

0641 0643 0645 0657 0659 0662 0664 0666 0668 06

0677 0679 0681 0683 0685 0688 0690 0692 0694 069

0703 0705 0707 0709 0711 0713 0715 0717 0719 07

0752-0764 0766-0775 0777-0794 0797 0799-0841 084
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

OPERATOR MSN

65X 0767

AAL 0423 0459 0460 0461 0462 0463 0465 0

0471 0474 0506 0507 0508 0509 0510 0

0514 0515 0516 0517 0606 0610 0612 0

0639 0643 0645 0675

AAW 0354

ABD 0529 0557 0755 0758

AHK 0855 0856 0857 0858 0859 0860 0870 0

AMU 0743

CAL 0788

CES 0521 0525 0532 0707 0725 0732 0741 0

CSN 0733 0734 0739 0750 0756 0762

DLH 0380 0391 0401 0405 0408 0411 0414 0

0618 0623 0701 0773

EGN 0555 0625

F2I 0284 0294 0301 0307 0312 0317 0321 0

0351

FDX 0358 0361 0365 0388 0417 0477 0479 0

0559 0572 0575 0579 0581 0633 0657 0

0715 0726 0728 0735 0736 0738 0742 0

0757 0759 0760 0761 0766 0768 0769 0

0777 0778 0779 0780 0781 0789 0790 0

0794 0799 0800 0801 0802 0803 0804 0

0876 0877 0878

GXY 0533 0872

IRA 0632 0696 0723 0727

JAL 0602 0617 0621 0637 0641 0670 0679 0

0724 0729 0730 0737 0740 0753 0770 0

0837 0838

KAC 0344 0673 0694 0699 0719 0721

KAL 0582 0609 0627 0631 0662 0685 0692 0

LAA 0601 0616

MON 0540 0556 0604 0605

MSR 0561 0607

OAL 0603

2
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

(c) Effectivity by MSN and Kit/Configuration

The kits and configurations applicable to these 

at the end of this list:

0252 0284 0294 0301 0307 0312 0317 0321 0336 034

0351 0354 0358 0361 0365 0368 0377 0380 0384 03

0398 0401 0405 0408 0411 0414 0417 0423 0459-04

0474 0477 0479 0505-0518 0521 0525 0529-0530 05

0540 0543 0546 0553-0561 0563 0566 0569 0572 05

0581-0582 0584 0601-0619 0621 0623 0625-0633 06

0641 0643 0645 0657 0659 0662 0664 0666 0668 06

0677 0679 0681 0683 0685 0688 0690 0692 0694 069

0703 0705 0707 0709 0711 0713 0715 0717 0719 07

0752-0764 0766-0775 0777-0794 0797 0799-0841 084

NOTE : Config. 01 is valid for all the aircraft 

had Service Bulletin A300-57-6106 (Mod. N

embodied or which have not had oversized 

fit bushes installed in the LH and/or RH 

bearing forward lugs as per Repair Instru

R57240221. If oversized interference fit 

been installed as per Repair Instruction 

one wing only, then the opposite wing mu

inspected.

(3) Spares

None

THA 0368 0377 0384 0395 0398 0464 0518 0

0628 0629 0635 0681 0705 0782 0784 0

UPS 0805 0806 0807 0808 0809 0810 0811 0

0815 0816 0817 0818 0819 0820 0821 0

0825 0826 0827 0828 0829 0830 0831 0

0835 0839 0840 0841 0845 0846 0847 0

0851 0852 0853 0854 0861 0862 0863 0

0867 0868 0869

KIT No. QTY PER A/C CONFIGURATION

01

3
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

(1) History

During routine maintenance, a crack has been found v

forward lug of the MLG rib 5 aft bearing attachment o

in-service aircraft. The concerned aircraft had accum

Flight Cycles (FC) and 27,000 FC at the time of find

OIT 999.0115/06).

In both cases the cracks extended through the entire 

the forward lug. The examination of the cracked ribs 

that the crack originated due to the presence of pitt

in the forward lug holes. Other small corner crack s

identified within the corroded region adjacent to th

on both aircraft medium to heavy corrosion was found 

lugs on the opposite wing after removal of the bushe

As an interim measure the Alert Service Bulletin (ASB

was issued to introduce a repetitive Detailed Visual 

(DVI) of the forward lug of the MLG Rib 5 aft bearing 

(2) Objective/Action

This Inspection Service Bulletin introduces a repetit

program to detect a crack in the forward lug of the 

Rib 5 aft bearing attachment.

Operators now have the choice to perform an ultrason

or a DVI.

The ultrasonic inspection will detect any crack at a

and limit the risk of extensive repairs. This earlie

detection is not possible with the DVI.

If no crack is found the operator has the option to 

modification Service Bulletin A300-57-6106 (Mod No. 

to perform repeat inspections. The embodiment of Serv

A300-57-6106 (Mod No. 13348H5689) is strongly recomm

cancel the inspection requirements of this Service B

This Service Bulletin supersedes Alert Service Bullet

A300-57A6105.

NOTE : Aircraft which have had Service Bulletin A300

No. 13348H5689) embodied or which have had ove

interference fit bushes installed in the LH a

rib 5 aft bearing forward lugs as per Repair 

4
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

inspection area on the forward lug of the MLG rib 5 

attachment will be identified.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

(1) Config. 01

(a) Make the work area safe.

(b) Get access to the forward lugs of the LH and RH 

bearing attachment.

(c) Do a DVI or an ultrasonic inspection.

(d) Close up and complete the documentation.

E. COMPLIANCE

(1) Classification

Mandatory

(2) Accomplishment Timescale

(a) A DVI or Ultrasonic Inspection of the MLG Rib 5 

before accumulation of 12,000 FC from new or fro

5 replacement when applicable. If a MLG Rib 5 ha

on one side only then the RH and LH should be co

separately. If the 12,000 FC threshold has been 

the first inspection is mandatory within 10 cale

receipt of this Service Bulletin.

1 If there are no findings, a repeat inspectio

until accomplishment of Service Bulletin A300

No. 13348H5689) at the intervals that follow 

— DVI every 100 FC

— Ultrasonic Inspection every 675 FC.

5
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

crack is visible, aircraft can continue opera

accomplishment of the Repair Instruction R572

providing a repeat visual inspection is perfo

calendar hours with no findings. In case of f

the visual inspection, the fitting will have 

before the next flight.

NOTE : The ultrasonic inspection will detect 

an early stage and limit the risk of e

repairs. This earlier crack detection 

possible with the DVI.

NOTE : Aircraft which have had Service Bullet

A300-57-6106 (Mod No. 13348H5689) embo

have had oversized interference fit bu

in the LH and/or RH MLG rib 5 aft bea

lugs as per Repair R57240221 are not e

this Service Bulletin. If oversized in

bushes have been installed as per Repa

on one wing only, then the opposite wi

inspected.

(b) Accomplishment of this Service Bulletin is expe

rendered mandatory by the issue of an Airworthi

(AD) published by the European Aviation Safety A

It is anticipated that the AD will confirm the 

and/or intervals and/or date) given above but re

be made to the AD for confirmation of the mandat

accomplishment timescale.

F. APPROVAL

Approved under EASA Design Organisation Approval No. EASA

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 labor 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

6
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

H. WEIGHT AND BALANCE

Not changed

I. ELECTRICAL LOAD DATA

Not changed

J. REFERENCES

K. PUBLICATIONS AFFECTED

L. INTERCHANGEABILITY/MIXABILITY

Not applicable

Close-up 

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

Get access 

Visual inspection 

Close-up 

TOTAL MANHOURS 

ELAPSED TIME (HOURS) 

Aircraft Maintenance Manual (AMM) : 24-00-00 32-00-00

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

Non destructive Testing Manual (NTM) : 51-70-00 57-51-34

Service Bulletin : A300-57-6058

Service Bulletin : A300-57-6106

Service Bulletin : A300-57A6105

Repair Instruction (RI) : R57240221

Maintenance Planning Document (MPD) : Volume 1

7
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

This Page Intentionally Left Blank

8
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

AIRBUS will not provide industry support for accomplishme

Service Bulletin.

C. LIST OF COMPONENTS

None

D. LIST OF MATERIALS — OPERATOR SUPPLIED

(1) Consumable Materials

(2) Components

If a repair is to be accomplished, refer to Repair I

R57240221 for required components.

E. PARTS TO BE RE—IDENTIFIED BY THE OPERATOR

None

F. TOOLING — PRICE AND AVAILABILITY

None

G. SPECIAL TOOLS

Refer to NTM 57-51-34, Part 4 and Repair Instruction R5724

special tooling information.

DESCRIPTION REFERENCE TO CML

MAT. No.

QTY PER A/C 

Cleaning Agent 11-026 As required

Ardrox AV15 15-009A As required

9
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

This Page Intentionally Left Blank

10
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

CHOCKS ARE IN POSITION.

CAUTION : ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP 

WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY 

MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENAN

REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICA

COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBL

PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTH

NECESSARY ON WIRING AND COMPONENTS.

REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIA

CONTAMINATION.

THESE PRECAUTIONS WILL DECREASE THE RISK OF CONT

DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.

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

(1) Preparation

(a) Config. 01

1 Make sure that the ground safety pins are in 

the MLG (Refer to AMM 32-00-00 Page block 30

2 Make sure that the aircraft is electrically g

to AMM 24-00-00 Page block 301).

3 Put a warning notice on the panel 4VU to tel

to operate the landing gear.

4 Put the access platforms in position.

5 Clean the inspection area use Cleaning Agent 

11-026) .

(2) Standard Practices

None

B. INSPECTION

NOTE (01) Operators can choose between an ultrasonic inspe

para 3.B.(1) or a DVI as per para. 3.B.(2).

11
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

(a) Ultrasonic Inspection

Refer to Figure 1

1 Do the ultrasonic inspection of the forward 

Rib 5 attachment fitting (Refer to NTM 57-51

2 If a crack is found, do workstep 3.B.(1)(b) a

the Flow Chart, Figure 2 .

3 If no cracks are found it is strongly recomme

modification Service Bulletin A300-57-6106 (M

13348H5689) is accomplished within 675 FC. If 

modification is not accomplished at this stag

protective coating of Ardrox AV15 (Mat No. 15

the interface of the bush and lug and refer t

CLOSE-UP.

(b) Detailed Visual Inspection

Refer to Figure 1

1 Prepare the area (Refer to NTM 51-70-00, Part 

NOTE : When looking forward, cracks are most 

occur on the aft face of the gear rib 

at approximately the 4 O'clock positio

gear rib and at approximately the 8 o'

on the RH gear rib.

2 Visually inspect the forward lug. Pay specia

the inboard face and to the forward and aft 

lug.

3 If a crack is found contact AIRBUS immediatel

Rib 5 will have to be replaced before the nex

4 If no cracks are found it is strongly recomme

Repair Instruction R57240221 is accomplished 

If the repair is not accomplished at this sta

a protective coating of Ardrox AV15 (Mat No. 

around the interface of the bush and lug and 

3.E CLOSE-UP.

(c) Report any findings to AIRBUS (Refer to Appendix 

12
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

(a) Make sure that the work areas are clean and clea

other items of equipment.

(b) Remove access platforms.

(c) Remove safety devices from the landing gear and 

doors.

(d) Remove warning notices.

E. DOCUMENTATION

Write in the applicable aircraft records that you have don

given in the Service Bulletin.

13
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

Figure 1 Sheet 1

Config. 01: DVI Area of the MLG Forward Lug Faces

14
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

Figure 2 Sheet 1

Config. 01: LH and RH Wing MLG Forward Lug Inspection Flo

15
7 DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2007 All rights reserved
DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page :

Printed in FRANCE © AIRBUS, 2007 All rights reserved

Figure 1 Sheet 1

LH and RH wing MLG rib 5 attachment lugs - Inspection R

2
7 DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2007 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:

Either: Modification Operational Impact (MOI), if available. . YE

Or : Intermediate 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

 e-mail: sb.reporting@airbus.com

 or via your Resident Customer Support Office.

 Alternatively, SB lists via letters or fax are also accepted.
7 DATE : Aug 08/07 SERVICE BULLETIN No. : A300

REVISION No. : 00 — Page : 1 of 

Printed in FRANCE © AIRBUS, 2007 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 : SEM4 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.