@A300

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 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 Inspection (SDET) is also introduced by this Service Bulletin for

Gear Rib 5 lugs:

- Modified by Service Bulletin A300-57-0249 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.: A300-57-0255

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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) :

69X ABR AFG C2A DHL F2I IAW IRA IRM KYE KZU MIX MNB

MNG MSR NTR P2A RUN SOP TNO TSY

CONCURRENT REQUIREMENTS

Service Bulletin A300-57-0249.

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 570255-832-895-001: METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

TOTAL MANHOURS 3.00

ELAPSED TIME (HOURS) 3.00

Task 570255-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

TOTAL MANHOURS 4.00

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SERVICE BULLETIN

SUMMARY

Task 570255-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

ELAPSED TIME (HOURS) 4.00

APPENDICES

INSPECTION REPORTING FORM

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SERVICE BULLETIN

SUMMARY

**CONF ALL

A

GEAR RIB

FORWARD LUG

INNER

REAR SPAR

FWD

A

LH SHOWN

RH SIMILAR

A_SB_570255_7_SAAA_01_00

GEAR RIB

AFT LUG

Figure A-USAAA - Sheet 01

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@A300

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

B4-103 B4-203 B4-2C C4-203 F4-203

(2) Effectivity by MSN

0041 0045 0047 0053 0055 0075 0083-0085 0095 0100-0101 0105 0107 0116-0117

0123-0126 0129 0134 0139 0141 0147 0149-0152 0154-0155 0157 0173 0175 0180

0183-0184 0189-0190 0196 0199-0200 0203-0204 0208 0210-0212 0216 0218-0220

0227 0234-0236 0239 0247 0249-0250 0255-0256 0259 0261 0265 0274 0277 0289

0292 0299 0302 0304

(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

69X 0095

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@A300

SERVICE BULLETIN

OPERATOR MSN

ABR 0152 0184 0189 0199 0208 0219 0220 0234 0236 0250 0259 0274

0289

AFG 0180 0190

C2A 0211 0261

DHL 0084 0085 0141 0149 0249 0265

F2I 0083 0235

IAW 0239

IRA 0139 0151 0173 0256 0299 0302

IRM 0055 0175 0204

KYE 0053 0100 0216

KZU 0041 0101 0117

MIX 0125 0134 0157 0196 0203 0218

MNB 0123 0212 0277 0292 0304

MNG 0047

MSR 0200 0255

NTR 0124 0155

P2A 0116 0150

RUN 0075 0105 0107 0147 0154 0183

SOP 0126

TNO 0045 0210 0227 0247

TSY 0129

(4) Configuration by MSN

MSN CONFIGURATION

0041 0045 0047 0053 0055 0075 0083 0084 0085 0095 0100

0101 0105 0107 0116 0117 0123 0124 0125 0126 0129 0134

0139 0141 0147 0149 0150 0151 0152 0154 0155 0157 0173

0175 0180 0183 0184 0189 0190 0196 0199 0200 0203 0204

0208 0210 0211 0212 0216 0218 0219 0220 0227 0234 0235

0236 0239 0247 0249 0250 0255 0256 0259 0261 0265 0274

0277 0289 0292 0299 0302 0304

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 A300-57-0249.

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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 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 Inspection (SDET)

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

- Modified by Service Bulletin A300-57-0249 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 570255-832-895-001: METHOD 1 - DETAILED VISUAL INSPECTION (DVI)

(1) Do a Detailed Visual Inspection (DVI)

Task 570255-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

(1) Do an Ultrasonic Inspection (SDET)

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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 570255-832-895-001: 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 570255-832-896-001: METHOD 2 - ULTRASONIC INSPECTION (SDET)

Get Access 1.00

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SERVICE BULLETIN

Task 570255-832-896-001: 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) 57-42-11

K. PUBLICATION AFFECTED

None

L. INTERCHANGEABILITY/MIXABILITY

Not Applicable

M. SPARES

None

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SERVICE BULLETIN

This Page Intentionally Left Blank

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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

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SERVICE BULLETIN

(3) Special Tools

Refer to NTM 57-42-11, Part 4 and Repair Instruction R57240425 for special tooling

information.

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-0255

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 570255-832-895-001 - 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 570255-910-401-001 - 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).

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SERVICE BULLETIN

(2) Subtask 570255-839-401-001 - 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 570255-941-401-001 - 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

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SERVICE BULLETIN

C. PROCEDURE

(1) Subtask 570255-220-401-001 - 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-UBAAA

Detailed Visual Inspection (DVI) 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-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 for cracks.

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 570255-942-401 001 CLOSE-UP and repeat the inspection within

550 FC.

D. TEST

None

E. CLOSE-UP

(1) Subtask 570255-942-401-001 - CLOSE-UP

Manpower Resources

Skills AIRFRAME

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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).

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SERVICE BULLETIN

Task 570255-832-896-001 - 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 570255-910-402-001 - 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 570255-839-402-001 - ADMINISTRATIVE

Manpower Resources

Skills NON SPECIFIC

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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 570255-941-402-001 - 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

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SERVICE BULLETIN

C. PROCEDURE

(1) Subtask 570255-832-401-001 - 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) 57-42-11 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 57-42-11 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 570255-942-402 001 CLOSE-UP and repeat the inspection within

1000 FC.

D. TEST

None

E. CLOSE-UP

(1) Subtask 570255-942-402-001 - CLOSE-UP

Manpower Resources

Skills AIRFRAME

References

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

32-12-11, Page Block 301

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(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).

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SERVICE BULLETIN

**CONF ALL

DETECTED?

ACTION BEFORE

FOR FURTHER

QUESTION

ACTION

FINDING

NO YES

CONTACT AIRBUS

NEXT FLIGHT

TO AIRBUS

FINDINGS

REPORT NIL

EMBODIED SB 57−0249 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

A_SB_570255_7_FAAA_01_04

CRACK/INDICATION

Figure A-UFAAA - Sheet 01

Inspection Flowchart

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-0255

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

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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

A_SB_570255_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.: A300-57-0255

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

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SERVICE BULLETIN

**CONF ALL

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_SB_570255_7_CAAA_01_00

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.: A300-57-0255

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

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@A300

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-0255

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

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@A300

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.: A300-57-0255

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

7

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@A300

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

A300−57−0255

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

A_SB_570255_7_AAAA_01_02

Figure A-UAAAA - Sheet 01

Inspection Reporting Form

DATE: Jan 13/12 SERVICE BULLETIN No.: A300-57-0255

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

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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.: A300-57-0255

REVISION No.: 00 - Jan 13/12 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: Jan 13/12 SERVICE BULLETIN No.: A300-57-0255

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

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