@A300-600

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: 57

TITLE: WINGS - STRUCTURE - INSPECTION OF MAIN LANDING GEAR

SUPPORT RIB 5 LUGS

**CONF ALL

MODIFICATIONS

None

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

During routine maintenance, two A321 aircraft Left Hand (LH) Main Landing Gear (MLG) Rib 5 forward

lugs were found ruptured. These had been previously modified as per Service Bulletin A320-57-1118

under Structural Repair Manual limits (Ref. ARS 57-0029).

The analysis of the first event has shown that a sealant discrepancy had led to water ingress and

then initiated corrosion, leading to cracking. The investigation of the second event has shown that a

remaining defect which was not removed during the repair had propagated, resulting in rupture of the

lug.

In order to maintain Continued Airworthiness of Single Aisle aircraft, a repetitive Detailed Visual

Inspection is introduced by Rev. 01 to Service Bulletin A320-57-1166 for all modified and/or repaired

aircraft.

Due to the similarity between MLG Rib 5 on A300-600 aircraft and that of the A320 aircraft family

(same design principle for the lug, same material, same modification or repair principles), a repetitive

Detailed Visual Inspection (DVI) or Ultrasonic (SDET) Inspection is also introduced by this Service

Bulletin for Gear Rib 5 lugs:

- Modified by Service Bulletin A300-57-6106 Rev. 00 to 02

- Repaired by Repair Instruction R57240221 Issue A to G.

This repetitive inspection will maintain Airworthiness of all aircraft modified by Service Bulletin and/or

repaired by Repair Instruction.

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 1

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

SUMMARY

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

COST SAVING NO ETOPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED NO

NOTE (1): Service Bulletin must be accomplished.

MATERIAL PRICE INFORMATION

No Material

EFFECTIVITY

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

34Z 77T 83V AAL ABD AHK AIB AMU BCS CES F2I FDX G8E

GBG IRA IRM JAL KAC KAL MNB MON MSR MXU OHY QTR SUD

TAR THA TMA UPS URS UZB

CONCURRENT REQUIREMENTS

Service Bulletin A300-57-6106.

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 576112-832-895-001: METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

TOTAL MANHOURS 3.00

ELAPSED TIME (HOURS) 3.00

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 2

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

SUMMARY

Task 576112-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

TOTAL MANHOURS 4.00

ELAPSED TIME (HOURS) 4.00

APPENDICES

INSPECTION REPORTING FORM

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 3

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

SUMMARY

**CONF ALL

A

GEAR RIB

FORWARD LUG

INNER

REAR SPAR

FWD

A

LH SHOWN

RH SIMILAR

GEAR RIB

AFT LUG

D_SB_576112_7_SAAA_01_00

Figure A-USAAA - Sheet 01

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 4

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

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: 57

TITLE: WINGS - STRUCTURE - INSPECTION OF MAIN LANDING GEAR

SUPPORT RIB 5 LUGS

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

B4-603 B4-605R B4-620 B4-622 B4-622R C4-605R/F C4-620 F4-605R

F4-622R

(2) Effectivity by MSN

0284 0301 0307 0317 0321 0336 0344 0348 0351 0358 0361 0365 0380 0388 0401

0405 0408 0411 0414 0417 0464 0466 0477 0479 0505-0508 0511-0513 0515

0517-0518 0521 0525 0529-0530 0532 0536 0540 0543 0546 0553-0561 0563 0566

0569 0572 0575 0577 0579 0581-0582 0584 0602-0605 0607-0614 0617-0618 0621

0623 0625-0633 0635 0637 0641 0643 0645 0657 0659 0662 0664 0666 0668 0670

0673 0675 0677 0679 0681 0683 0685 0688 0692 0694 0696 0699 0701 0703 0705

0707 0709 0711 0713 0715 0717 0719 0721-0750 0752-0764 0766-0775 0777-0794

0797 0799-0841 0845-0878

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 1

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

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

34Z 0685

77T 0838

83V 0466 0511 0512 0675

AAL 0517 0612

ABD 0529 0557

AHK 0855 0856 0857 0858 0859 0860 0870 0871

AIB 0507 0508 0515

AMU 0677 0743

BCS 0621 0637 0641 0670 0679 0711 0724 0729 0740

CES 0521 0525 0532 0707 0725 0732 0741 0746 0754 0763

F2I 0284 0301 0307 0317 0321 0336 0348 0351 0518 0610 0645 0753

0770

FDX 0358 0361 0365 0388 0417 0477 0479 0530 0536 0543 0555 0559

0572 0575 0579 0581 0611 0613 0625 0630 0633 0657 0659 0664

0668 0688 0709 0713 0715 0726 0728 0735 0736 0738 0742 0745

0748 0752 0757 0759 0760 0761 0766 0768 0769 0771 0772 0774

0777 0778 0779 0780 0781 0789 0790 0791 0792 0793 0794 0799

0800 0801 0802 0803 0804 0873 0874 0875 0876 0877 0878

G8E 0506 0513

GBG 0626 0643

IRA 0632 0696 0723 0727

IRM 0380 0401 0405 0408 0411 0414 0546 0553 0608 0618 0623 0701

0750 0762 0773

JAL 0602 0617 0683 0703 0730 0737 0783

KAC 0344 0673 0694 0699 0719 0721

KAL 0582 0609 0627 0631 0662 0692 0731

MNB 0734 0739 0755 0756 0758

MON 0540 0556 0604 0605

MSR 0561 0607

MXU 0767 0788 0797 0836 0837

OHY 0584 0603 0744 0747 0749 0764

QTR 0554 0560 0614

SUD 0666 0775

TAR 0505 0558 0563

THA 0464 0566 0569 0577 0628 0629 0635 0681 0705 0782 0784 0785

0786 0787

TMA 0872

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 2

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

OPERATOR MSN

UPS 0805 0806 0807 0808 0809 0810 0811 0812 0813 0814 0815 0816

0817 0818 0819 0820 0821 0822 0823 0824 0825 0826 0827 0828

0829 0830 0831 0832 0833 0834 0835 0839 0840 0841 0845 0846

0847 0848 0849 0850 0851 0852 0853 0854 0861 0862 0863 0864

0865 0866 0867 0868 0869

URS 0733

UZB 0717 0722

(4) Configuration by MSN

MSN CONFIGURATION

0284 0301 0307 0317 0321 0336 0344 0348 0351 0358 0361

0365 0380 0388 0401 0405 0408 0411 0414 0417 0464 0466

0477 0479 0505 0506 0507 0508 0511 0512 0513 0515 0517

0518 0521 0525 0529 0530 0532 0536 0540 0543 0546 0553

0554 0555 0556 0557 0558 0559 0560 0561 0563 0566 0569

0572 0575 0577 0579 0581 0582 0584 0602 0603 0604 0605

0607 0608 0609 0610 0611 0612 0613 0614 0617 0618 0621

0623 0625 0626 0627 0628 0629 0630 0631 0632 0633 0635

0637 0641 0643 0645 0657 0659 0662 0664 0666 0668 0670

0673 0675 0677 0679 0681 0683 0685 0688 0692 0694 0696

0699 0701 0703 0705 0707 0709 0711 0713 0715 0717 0719

0721 0722 0723 0724 0725 0726 0727 0728 0729 0730 0731

0732 0733 0734 0735 0736 0737 0738 0739 0740 0741 0742

0743 0744 0745 0746 0747 0748 0749 0750 0752 0753 0754

0755 0756 0757 0758 0759 0760 0761 0762 0763 0764 0766

0767 0768 0769 0770 0771 0772 0773 0774 0775 0777 0778

0779 0780 0781 0782 0783 0784 0785 0786 0787 0788 0789

0790 0791 0792 0793 0794 0797 0799 0800 0801 0802 0803

0804 0805 0806 0807 0808 0809 0810 0811 0812 0813 0814

0815 0816 0817 0818 0819 0820 0821 0822 0823 0824 0825

0826 0827 0828 0829 0830 0831 0832 0833 0834 0835 0836

0837 0838 0839 0840 0841 0845 0846 0847 0848 0849 0850

0851 0852 0853 0854 0855 0856 0857 0858 0859 0860 0861

0862 0863 0864 0865 0866 0867 0868 0869 0870 0871 0872

0873 0874 0875 0876 0877 0878

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

MATERIAL QTY PER A/C SEE NOTES

Consumable CMLB01 As required

B. CONCURRENT REQUIREMENTS

Service Bulletin A300-57-6106.

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 3

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

C. REASON

(1) History

During routine maintenance, two A321 aircraft Left Hand (LH) Main Landing Gear (MLG)

Rib 5 forward lugs were found ruptured. These had been previously modified as

per Service Bulletin A320-57-1118 under Structural Repair Manual limits (Ref. ARS

57-0029).

The analysis of the first event has shown that a sealant discrepancy had led to water

ingress and then initiated corrosion, leading to cracking. The investigation of the second

event has shown that a remaining defect which was not removed during the repair had

propagated, resulting in rupture of the lug.

(2) Objective/Action

In order to maintain Continued Airworthiness of Single Aisle aircraft, a repetitive Detailed

Visual Inspection is introduced by Rev. 01 to Service Bulletin A320-57-1166 for all

modified and/or repaired aircraft.

Due to the similarity between MLG Rib 5 on A300-600 aircraft and that of the A320

aircraft family (same design principle for the lug, same material, same modification or

repair principles), a repetitive Detailed Visual Inspection (DVI) or Ultrasonic (SDET)

Inspection is also introduced by this Service Bulletin for Gear Rib 5 lugs:

- Modified by Service Bulletin A300-57-6106 Rev. 00 to 02

- Repaired by Repair Instruction R57240221 Issue A to G.

(3) Advantages

This repetitive inspection will maintain Airworthiness of all aircraft modified by Service

Bulletin and/or repaired by Repair Instruction.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

NOTE: Operators have a choice to perform either a Detailed Visual Inspection (DVI)

or an Ultrasonic Inspection (SDET). Refer to the two separate tasks for each

Method.

To accomplish this Service Bulletin it is necessary to :

Task 576112-832-895-001: METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

(1) Do a Detailed Visual Inspection (DVI)

Task 576112-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

(1) Do an Ultrasonic Inspection (SDET)

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 4

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

E. COMPLIANCE

(1) Classification

MANDATORY: Service Bulletin must be accomplished.

(2) Accomplishment Timescale

Threshold (since Modification/repair embodiment): 2,500 Flight Cycles (FC)

Interval for Detailed Visual Inspection (DVI),

repetitive inspection:

550 FC

Interval for Ultrasonic Inspection (SDET), repetitive

inspection:

1,000 FC

For aircraft having exceeded the threshold, a

grace period is permitted:

550 FC

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

Organization 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 576112-832-895-001: METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

Get Access 1.00

On Aircraft

Do a Detailed Visual Inspection (DVI) 1.00

Close-Up 1.00

TOTAL MANHOURS 3.00

ELAPSED TIME (HOURS) 3.00

Task 576112-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

Get Access 1.00

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 5

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

Task 576112-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

On Aircraft

Do an Ultrasonic Inspection (SDET) 2.00

Close-Up 1.00

TOTAL MANHOURS 4.00

ELAPSED TIME (HOURS) 4.00

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 06-21-00 32-00-00 32-12-11

Consumable Material List (CML)

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

Non Destructive Test Manual (NTM) 57-51-34

K. PUBLICATION AFFECTED

None

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

M. SPARES

None

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 6

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

None

(2) Price and Availability

None

B. INDUSTRY SUPPORT INFORMATION

AIRBUS will not provide industry support for accomplishment of this Service Bulletin.

C. LIST OF COMPONENTS

No Kit

D. LIST OF MATERIALS - OPERATOR SUPPLIED

(1) Consumable Materials

Consumable CMLB01

ITEM DESCRIPTION REFERENCE TO CML

MAT. No.

QTY PER A/C SEE

NOTES

Solvent General Purpose 11-026 As required

Lint-Free Cotton Cloth 19-003 As required

(2) Components

None

(3) Equipment

None

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

(1) Tooling - Price and Availability

None

(2) Tools

None

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 7

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

(3) Special Tools

Refer to NTM 57-51-34, Part 4 and Repair Instruction R57240425 for special tooling

information.

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 8

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 576112-832-895-001 - METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

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.

IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00.

Task Associated Data

Zone

733 743

Manpower

TOTAL MANHOURS 3.00

ELAPSED TIME (HOURS) 3.00

A. GENERAL

(1) Subtask 576112-910-401-001 - STANDARD PRACTICES

Manpower Resources

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) 06-21-00, Page Block 001

Consumable Material List (CML)

(a) For the specification of materials (Mat. No.) given in this Service Bulletin (Refer to

Consumable Materials List (CML)).

(b) For the identification of zones (Refer to AMM 06-21-00, Page Block 001).

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 9

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

(2) Subtask 576112-839-401-001 - ADMINISTRATIVE

Manpower Resources

Skills AIRFRAME

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

Service Bulletin.

B. PREPARATION

(1) Subtask 576112-941-401-001 - JOB SET-UP

Work Zones and Access Panels

Zone Access/Work location

733

743

Manpower Resources

Skills AIRFRAME

Material necessary to do the job

Consumable CMLB01

ITEM DESCRIPTION REFERENCE TO

CML MAT. No.

QTY PER A/C SEE

NOTES

Solvent General Purpose 11-026 As required

Lint-Free Cotton Cloth 19-003 As required

References

Aircraft Maintenance Manual (AMM) 32-00-00, Page Block 301

32-12-11, Page Block 301

(a) Make sure that the ground safety locks are in position on the MLG (Refer to AMM

32-00-00, Page Block 301).

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

(c) Put the access platforms in position at zones 733 and 743.

(d) Clean the inspection area with:

Lint-Free Cotton

Cloth

19-003 As required

made moist with:

Solvent General

Purpose

11-026 As required

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 10

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

C. PROCEDURE

(1) Subtask 576112-220-401-001 - Do a Detailed Visual Inspection (DVI)

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills AIRFRAME

References

Fig. A-UFAAA

Inspection Flowchart

Sheet 01

Fig. A-UBAAA

Detailed Visual Inspection (DVI) of the

MLG Support Rib 5 Lugs

Sheet 01

Refer to Fig. A-UFAAA Sheet 01 and Fig. A-UBAAA Sheet 01.

(a) Do a visual inspection of the forward lug. Carefully examine the "visible area" and

the forward and aft faces of the lug.

NOTE: When you do the inspection, look for cracks between the:

- 1.00 o’clock and 5.00 o’clock positions on the aft face of the

Gear Rib 5 forward lug (carefully examine the 4.00 o’clock

position)

- 7.00 o’clock and 11.00 o’clock positions on the forward face of

the Gear Rib 5 forward lug.

(b) If you find a crack(s) contact AIRBUS for instructions before the next flight. Use the

INSPECTION REPORTING FORM .

(c) If there are no cracks, report Nil findings to AIRBUS. Use the INSPECTION

REPORTING FORM .

Go to SUBTASK 576112-942-401 001 CLOSE-UP and repeat the inspection within

550 FC.

D. TEST

None

E. CLOSE-UP

(1) Subtask 576112-942-401-001 - CLOSE-UP

Manpower Resources

Skills AIRFRAME

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 11

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

References

Aircraft Maintenance Manual (AMM) 32-00-00, Page Block 301

32-12-11, Page Block 301

(a) Make sure that the work areas are clean and clear of tools and other items of

equipment.

(b) Remove the ground safety locks from the MLG (Refer to AMM 32-00-00, Page

Block 301).

(c) Remove the access platforms.

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

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 12

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

Task 576112-832-896-001 - METHOD 2 - ULTRASONIC INSPECTION (SDET)

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.

IF THERE IS CONTAMINATION, REFER TO ESPM 20-55-00.

Task Associated Data

Zone

733 743

Manpower

TOTAL MANHOURS 4.00

ELAPSED TIME (HOURS) 4.00

A. GENERAL

(1) Subtask 576112-910-402-001 - STANDARD PRACTICES

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) 06-21-00, Page Block 001

Consumable Material List (CML)

(a) For the specification of materials (Mat. No.) given in this Service Bulletin (Refer to

Consumable Materials List (CML)).

(b) For the identification of zones (Refer to AMM 06-21-00, Page Block 001).

(2) Subtask 576112-839-402-001 - ADMINISTRATIVE

Manpower Resources

Skills NON SPECIFIC

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 13

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

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

Service Bulletin.

B. PREPARATION

(1) Subtask 576112-941-402-001 - JOB SET-UP

Work Zones and Access Panels

Zone Access/Work location

733

743

Manpower Resources

Skills AIRFRAME

Material necessary to do the job

Consumable CMLB01

ITEM DESCRIPTION REFERENCE TO

CML MAT. No.

QTY PER A/C SEE

NOTES

Solvent General Purpose 11-026 As required

Lint-Free Cotton Cloth 19-003 As required

References

Aircraft Maintenance Manual (AMM) 32-00-00, Page Block 301

32-12-11, Page Block 301

(a) Make sure that the ground safety locks are in position on the MLG (Refer to AMM

32-00-00, Page Block 301).

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

(c) Put the access platforms in position at zones 733 and 743.

(d) Clean the inspection area with:

Lint-Free Cotton

Cloth

19-003 As required

made moist with:

Solvent General

Purpose

11-026 As required

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 14

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

C. PROCEDURE

(1) Subtask 576112-832-401-001 - Do an Ultrasonic Inspection (SDET)

Manpower Resources

Manhours 2.00

Minimum number of person 1

Subtask elapsed time 2.00

Skills AIRFRAME

References

Non Destructive Test Manual (NTM) 57-51-34 Part 4

Fig. A-UCAAA

Ultrasonic Inspection (SDET) of the MLG

Support Rib 5 Lugs

Sheet 01

Fig. A-UFAAA

Inspection Flowchart

Sheet 01

Refer to Fig. A-UFAAA Sheet 01 and Fig. A-UCAAA Sheet 01.

(a) Do an Ultrasonic Inspection (SDET) of the forward lug (Refer to NTM 57-51-34 Part

4).

NOTE: When you do the Ultrasonic Inspection (SDET) look for indications

within the scan area. Refer to Fig. A-UCAAA Sheet 01.

(b) If you find an indication contact AIRBUS for instructions before the next flight. Use

the INSPECTION REPORTING FORM .

(c) If there are no indications, report Nil findings to AIRBUS. Use the INSPECTION

REPORTING FORM .

Go to SUBTASK 576112-942-402 001 CLOSE-UP and repeat the inspection within

1000 FC.

D. TEST

None

E. CLOSE-UP

(1) Subtask 576112-942-402-001 - CLOSE-UP

Manpower Resources

Skills AIRFRAME

References

Aircraft Maintenance Manual (AMM) 32-00-00, Page Block 301

32-12-11, Page Block 301

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 15

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

(a) Make sure that the work areas are clean and clear of tools and other items of

equipment.

(b) Remove the ground safety locks from the MLG (Refer to AMM 32-00-00, Page

Block 301).

(c) Remove the access platforms.

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

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 16

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

**CONF ALL

QUESTION

ACTION

FINDING

ACTION BEFORE

FOR FURTHER

NO YES

CONTACT AIRBUS

NEXT FLIGHT

TO AIRBUS

FINDINGS

REPORT NIL

EMBODIED SB 57−6106 REV 00 TO 02

FOR MLG RIB 5 FWD LUGS THAT HAVE:

INSTRUCTION R57240221 ISSUE A TO G

INCORPORATED REPAIR

OR

ULTRASONIC (SDET):

PERFORM NDT

THRESHOLD GRACE PERIOD:

INTERVAL:

THRESHOLD:

550 FC

1000 FC

2500 FC

VISUAL INSPECTION (DVI):

PERFORM DETAILED

THRESHOLD GRACE PERIOD:

INTERVAL:

THRESHOLD:

550 FC

550 FC

2500 FC

OR

D_SB_576112_7_FAAA_01_04

DETECTED?

CRACK/INDICATION

Figure A-UFAAA - Sheet 01

Inspection Flowchart

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 17

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

**CONF ALL

VISIBLE AREA

GEAR RIB

AFT LUG

GEAR RIB

FORWARD LUG

VIEW ON FWD FACE OF THE FWD LUG AREA

VIEW ON AFT FACE OF THE FWD LUG AREA

GEAR RIB

FORWARD LUG

12

6

9 3

11

10

8

7 5

4

2

1

12

6

9 3

11

10

8

7 5

4

2

1

12

6

9 3

11

10

8

7 5

4

2

1

12

6

9 3

11

10

8

7 5

4

2

1

REAR SPAR

INNER

A

LH SHOWN

RH SIMILAR

A

D_SB_576112_7_BAAA_01_00

Figure A-UBAAA - Sheet 01

Detailed Visual Inspection (DVI) of the MLG Support Rib 5 Lugs

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 18

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

**CONF ALL

D_SB_576112_7_CAAA_01_00

VIEW ON AFT FACE OF THE FWD LUG AREA

GEAR RIB

FORWARD LUG

12

6

9 3

11

10

8

7 5

4

2

1

12

6

9 3

11

10

8

7 5

4

2

1

REAR SPAR

INNER

A

LH SHOWN

RH SIMILAR

A B

FWD INBD

SCAN MARKER

GUIDE

SCAN

AREA

LOCATE THE SCAN

MARKER GUIDE ON

THE LOWER EDGE OF

THE LUG AS SHOWN

B

Figure A-UCAAA - Sheet 01

Ultrasonic Inspection (SDET) of the MLG Support Rib 5 Lugs

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 19

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 20

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

INSPECTION REPORTING FORM

**CONF ALL

Use this Inspection Reporting Form to inform AIRBUS of any cracks found.

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 1

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

INSPECTION REPORTING FORM

**CONF ALL

DATE OF INSPECTION:

FLIGHT CYCLES:

FLIGHT HOURS:

OPERATOR:

SERVICE BULLETIN NUMBER:

A/C MSN OR REGISTRATION:

YES/NO

SHOW POSITION OF FINDING(S)

LH WING RH WING

RETURN TO:

FAX: +33(0)5 61 93 36 14

LH MLG RIB 5 RH MLG RIB 5

A300−57−6112

AIRBUS

C/O SEES2

1 ROND POINT MAURICE BELLONTE

31707 BLAGNAC CEDEX

FRANCE

YES/NO

SHOW POSITION OF FINDING(S)

FORWARD LUG FORWARD FACE

FORWARD LUG AFT FACE

FORWARD LUG FORWARD FACE

FORWARD LUG AFT FACE

REPAIR INCORPORATED:

DATE AND FC/FH:

MOD/SB INCORPORATED:

DATE AND FC/FH:

TYPE OF INSPECTION:

1. INSPECTION REPORT

NO./ISSUE:

NO./ISSUE:

DVI US

D_SB_576112_7_AAAA_01_02

Figure A-UAAAA - Sheet 01

Inspection Reporting Form

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 2

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

SERVICE BULLETIN

REPORTING SHEET

TITLE: WINGS - STRUCTURE - INSPECTION OF MAIN LANDING GEAR

SUPPORT RIB 5 LUGS

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: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 1

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.
@A300-600

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: Jan 13/12 SERVICE BULLETIN No.: A300-57-6112

REVISION No.: 00 - Jan 13/12 Page: 1

7

Printed in FRANCE © AIRBUS S.A.S. 2007. All rights reserved.