A300

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 MANDATORY

ATA SYSTEM : 57

TITLE : WING - MAIN LANDING GEAR ATTACHMENT - INTRODUCTION OF BUSHES WITH INCREASED

INTERFERENCE FIT IN THE GEAR RIB 5 AFT BEARING FORWARD LUG

MODIFICATION No. : 13348H5689

This page transmits Revision No. 02 of Service Bulletin No. A300-57-0249

ADDITIONAL WORK

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

REASON

This revision has been issued to change the Compliance from Recommended to Mandatory. The part

number of the line honing tool has been updated. Figure 1, Sheets 1, 2 and 3 revised to remove

revision bars.

Layout changes due to computerization of this revision are not identified.

CHANGES

SUMMARY :

- REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

. Evaluation Table has been updated, Compliance has been changed from Recommended to

Mandatory and Potential AD has been changed from No to Yes.

- EFFECTIVITY

. Effectivity has been updated.

PLANNING INFORMATION :

- EFFECTIVITY

. 1.A. Effectivity has been updated.

- COMPLIANCE

- Classification

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 1 of 3

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A300

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

. 1.E.(1) Compliance has been changed from Recommended to Mandatory.

- Accomplishment Timescale

. 1.E.(2) Accomplishment Timescale has been updated to reflect Mandatory compliance.

MATERIAL INFORMATION :

- MATERIAL - PRICE AND AVAILABILITY

- Material

. 2.A.(1) Address has been updated. Kit price updated.

- TOOLING - PRICE AND AVAILABILITY

. 2.F. Tool part number updated.

ACCOMPLISHMENT INSTRUCTIONS :

- MODIFICATION

. 3.B.(1)(b)4 Dimension identification changed.

. 3.B.(1)(b)5 Dimension identification changed.

. 3.B.(1)(b)6 Dimension identification changed.

. 3.B.(1)(c)1 Dimension identification changed.

. 3.B.(1)(c)5 Dimension identification changed.

. 3.B.(1)(c)9 Dimension identification changed.

- Figure 1

. Revision bars removed.

FILING 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

Revision 01 was issued to amend tooling item numbers, part numbers and correct the surface finish

units. The opportunity was taken to correct minor errors and update the effectivity.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 2

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A300

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

REVISION SEQUENCE

ORIGINAL : May 22/07

REVISION No. : 01 - Dec 19/07

REVISION No. : 02

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 3

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A300

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 4

Printed in France © AIRBUS 2008 All rights reserved
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 MANDATORY

ATA SYSTEM : 57

TITLE : WING - MAIN LANDING GEAR ATTACHMENT - INTRODUCTION OF BUSHES WITH INCREASED

INTERFERENCE FIT IN THE GEAR RIB 5 AFT BEARING FORWARD LUG

MODIFICATION No. : 13348H5689

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

During routine maintenance, a crack has been found visually in the Main Landing Gear (MLG) rib 5 on two

A310 in-service aircraft. The crack was found in the forward lug of the MLG rib 5 aft bearing attachment.

The concerned aircraft had accumulated 24,000 flight cycles (FC) and 27,000 FC at the time of finding, refer

to Operator Information Telex (OIT) 999.0115/06.

In both cases the cracks extended through the entire thickness of the forward lug. Inspection of the MLG rib 5

forward lug on the opposite wings was performed after removal of the bushes on the concerned aircraft. The

inspection revealed medium to heavy corrosion in the forward lug holes. A laboratory examination of the two

cracked ribs confirmed that the origin of the cracks was due to pitting corrosion.

Although there have been no crack findings on A300 B4 aircraft so far, the differences in MLG rib 5 design

compared to the A310 do not allow the exclusion of the possibility of cracks.

This Service Bulletin introduces new bushes with an increased interference fit in the aft bearing forward lugs.

The aft lug of the aft bearing attachment is not affected, as the bush is already installed during production

with an increased interference fit. After removal of the old bushes, a dye penetrant flaw detection inspection

is carried out on the lug bores and faces before installation of the new bushes to make sure that the lugs

are damage free.

If oversized interference fit bushes have already been installed in one or more of the MLG rib 5 aft bearing

forward lug positions as per the Repair Instruction R57240221, the intent of this modification can be

considered as embodied in those positions.

Accomplishment of this Service Bulletin will significantly reduce the likelihood of corrosion and any

subsequent cracks in the forward lug of the MLG rib 5 aft bearing attachment.

Accomplishment of this Service Bulletin will cancel the inspection requirements of Service Bulletins

A300-57A0248 and A300-57-0251.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 1 of 5

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A300

SERVICE BULLETIN

SUMMARY

EVALUATION TABLE

COMPLIANCE Mandatory CANCELS INSPECTION SB Yes

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

KIT PRICE (USD)B01R00 3960 NORMAL JACKING Yes

MODIFICATION CLASSIFICATION

MAJOR None

MINOR 13348H5689

As per EASA IR 21, a minor change is one that has no appreciable effect on the mass, balance, structural

strength, reliability, operational characteristics affecting the airworthiness of the product. All other changes

are major changes.

EFFECTIVITY

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

72U ABR AFG BCS DHL F2I FLM IAW IRA IRM KZU MIX MNB MSR NTR RUN SOP TDX TNO TSY

This modification is applicable by Service Bulletin only.

CONCURRENT REQUIREMENTS

None

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 2

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A300

SERVICE BULLETIN

SUMMARY

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

HARD : No

SOFT : No

OBRM : No

MANPOWER

Config. 01

TOTAL MANHOURS 37.50

ELAPSED TIME (HOURS) 19.00

NOTE : If the Repair Instruction R57240221, "Removal of corrosion from the gear rib lugs and the

installation of oversized bushes" is necessary, then approximately 52.0 manhours for each

wing will be necessary for repair.

MATERIAL INFORMATION

AIRCRAFT DATA

2 x Kit 570249B01R00 will be necessary for accomplishment of this Service Bulletin on each aircraft.

Kit 570249B01R00 comprises 1 bush A5724078620400 and 1 bush A5724085320200. 1 kit will be

necessary for the LH Gear Rib 5 and 1 kit will be necessary for the RH Gear Rib 5.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 3

Printed in France © AIRBUS 2008 All rights reserved
A300

SERVICE BULLETIN

SUMMARY

A Tool Kit 044A411058D is necessary to accomplish this Service Bulletin. The Tool Kit includes tools

for the removal/installation of the bushes and a line honing tool to finish the internal diameter of the

bushes after installation.

NOTE : Tool Kit 044A411058D also includes the re-boring tool which is necessary to repair the aft

bearing attachment lugs if they are found to be damaged.

APPENDICES

None

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 4

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A300

SERVICE BULLETIN

SUMMARY

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 5

Printed in France © AIRBUS 2008 All rights reserved
A300

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 6

Printed in France © AIRBUS 2008 All rights reserved
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 MANDATORY

ATA SYSTEM : 57

TITLE : WING - MAIN LANDING GEAR ATTACHMENT - INTRODUCTION OF BUSHES WITH INCREASED

INTERFERENCE FIT IN THE GEAR RIB 5 AFT BEARING FORWARD LUG

MODIFICATION No. : 13348H5689

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

A. EFFECTIVITY

(1) Models

B4-103 B4-120 B4-203 B4-2C C4-203 F4-203

(2) Aircraft

(a) Effectivity by MSN

This Service Bulletin is applicable to aircraft MSN :

0019 0041 0044 0045 0047 0053 0055 0074 0075 0078 0079 0083-0085 0094 0095

0100 0101 0105 0107 0116 0117 0121 0123-0126 0128 0129 0133-0137 0139 0141

0147-0152 0154-0157 0170 0173 0175 0180 0183 0184 0189 0190 0196 0199 0200

0203 0204 0208 0210-0212 0216 0218-0220 0227 0234-0236 0239 0243 0247 0249

0250 0255 0256 0259 0261 0265 0274 0277 0289 0292 0299 0302 0304

(b) 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.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 1 of 19

Printed in France © AIRBUS 2008 All rights reserved
A300

SERVICE BULLETIN

OPERATOR MSN

72U 0079

ABR 0148 0152 0184 0189 0199 0208 0219 0220 0234 0236 0250

0259 0274 0289

AFG 0180 0190

BCS 0095 0116 0150

DHL 0084 0085 0141 0149 0249 0265

F2I 0083 0094 0128 0133 0135 0136 0137 0156 0170 0235 0243

FLM 0151 0256

IAW 0239

IRA 0139 0173 0299 0302

IRM 0055 0175 0204

KZU 0041 0044 0101 0117

MIX 0125 0134 0157 0196 0203 0218

MNB 0019 0047 0123 0212 0277 0292 0304

MSR 0200 0255

NTR 0124 0155 0210 0227 0247 0261

RUN 0075 0105 0107 0121 0147 0154 0183

SOP 0126

TDX 0053 0100 0211 0216

TNO 0045 0074 0078

TSY 0129

This modification is applicable by Service Bulletin only.

(c) Effectivity by MSN and Kit/Configuration

The Kits and configurations applicable to these MSNs are given at the end of this list

0019 0041 0044-0045 0047 0053 0055 0074-0075 0078-0079 0083-0085 0094-0095

0100-0101 0105 0107 0116-0117 0121 0123-0126 0128-0129 0133-0137 0139 0141

0147-0152 0154-0157 0170 0173 0175 0180 0183-0184 0189-0190 0196 0199-0200

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

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A300

SERVICE BULLETIN

0203-0204 0208 0210-0212 0216 0218-0220 0227 0234-0236 0239 0243 0247

0249-0250 0255-0256 0259 0261 0265 0274 0277 0289 0292 0299 0302 0304

KIT No. QTY PER A/C CONFIGURATION

570249B01 2 01

NOTE : Config. 01 is valid for all aircraft that have not had oversized interference

fit bushes installed by Repair Instruction R57240221. If oversized

interference fit bushes are found to have been installed by Repair

Instruction R 57240221 on one wing only, then only 1 Kit 570249B01R00

will be necessary.

(3) Spares

None

B. CONCURRENT REQUIREMENTS

None

C. REASON

(1) History

During routine maintenance, a crack has been found visually in the MLG rib 5 on two A310

in-service aircraft. The crack was found in the forward lug of the MLG rib 5 aft bearing

attachment. The concerned aircraft had accumulated 24,000 FC and 27,000 FC at the

time of finding, refer to OIT 999.0115/06.

In both cases the cracks extended through the entire thickness of the forward lug.

Inspection of the MLG rib 5 forward lug on the opposite wings was performed after

removal of the bushes on the concerned aircraft. The inspection revealed medium to

heavy corrosion in the forward lug holes. A laboratory examination of the two cracked ribs

confirmed that the origin of the cracks was due to pitting corrosion.

Although there have been no crack findings on A300 B4 aircraft so far, the differences in

MLG rib 5 design compared to the A310 do not allow the exclusion of the possibility of

cracks.

(2) Objective/Action

This Service Bulletin introduces new bushes with an increased interference fit in the aft

bearing forward lugs. The aft lug of the aft bearing attachment is not affected, as the

bush is already installed with an increased interference fit since origin. After removal of

the old bushes, a dye penetrant flaw detection inspection is carried out on the lug bores

and faces before installation of the new bushes to make sure that the lugs are free of

corrosion/damage.

If oversized interference fit bushes have already been installed in one or more of the MLG

rib 5 aft bearing forward lug position(s) as per the Repair Instruction R57240221, the intent

of this modification can be considered as embodied in those position(s).

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 3

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A300

SERVICE BULLETIN

(3) Advantages

Accomplishment of this Service Bulletin will significantly reduce the likelihood of corrosion

and any subsequent cracks in the forward lug of the MLG rib 5 aft bearing attachment.

Accomplishment of this Service Bulletin will cancel the inspection requirements of Service

Bulletins A300-57A0248 and A300-57-0251.

(4) Operational/Maintenance Consequences

None

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

(1) Config. 01

(a) Lift the aircraft on jacks.

(b) Remove the LH and RH MLG legs.

(c) Remove the bushes from the gear rib 5 aft bearing forward lugs.

(d) Inspect the lug faces and bores for damage/corrosion.

(e) If there is damage/corrosion in the bores, do the work detailed in Repair Instruction

R57240221.

(f) If there is no damage/corrosion, install the new bushes in the forward lugs of the

MLG gear rib 5 aft bearing attachment.

NOTE : It is necessary to freeze fit the new bushes.

(g) Line-hone the new bushes to the finished internal diameter.

(h) Install the LH and RH MLG legs.

(i) Do the applicable tests.

(j) Lower the aircraft off jacks.

(k) Close up and complete the documentation.

E. COMPLIANCE

(1) Classification

Mandatory

(2) Accomplishment Timescale

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 4

Printed in France © AIRBUS 2008 All rights reserved
A300

SERVICE BULLETIN

Accomplishment of this Service Bulletin has been rendered mandatory by the issue of an

Airworthiness Directive (AD) published by the European Aviation Safety Agency (EASA).

The AD must be used as the reference document for the mandatory accomplishment

timescale.

F. APPROVAL

Approved under EASA 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.

Config. 01

Remove LH MLG 5.00

Remove RH MLG 5.00

Remove LH Gear Rib 5 bushes 1.50

Remove RH Gear Rib 5 bushes 1.50

Inspect bores/faces of the LH lugs 1.00

Inspect bores/faces of the RH lugs 1.00

Install new LH Gear Rib 5 bushes 3.00

Install new RH Gear Rib 5 bushes 3.00

Install LH MLG 5.00

Install RH MLG 5.00

Test 6.00

Close up 0.50

TOTAL MANHOURS 37.50

ELAPSED TIME (HOURS) 19.00

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 5

Printed in France © AIRBUS 2008 All rights reserved
A300

SERVICE BULLETIN

NOTE : If the Repair Instruction R57240221, "Removal of corrosion from the gear rib lugs and

the installation of oversized bushes" is necessary, then approximately 52.0 manhours

for each wing will need to be added.

H. WEIGHT AND BALANCE

Not changed

I. ELECTRICAL LOAD DATA

Not changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) : 07-11-00 32-11-11

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

Non destructive Testing Manual (NTM) : 51-60-00

Process and Mat. Spec. Manual (PMSM) : 01-06-12

Structural Repair Manual (SRM) : 51-40-18 51-40-20

Repair Instruction R57240221

Service Bulletin A300-57A0248

Service Bulletin A300-57-0251

K. PUBLICATIONS AFFECTED

None

L. INTERCHANGEABILITY/MIXABILITY

Not applicable

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 6

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A300

SERVICE BULLETIN

2. MATERIAL INFORMATION

A. MATERIAL - PRICE AND AVAILABILITY

(1) Material

Customers with aircraft shown in the effectivity of this Service Bulletin should send a

purchase order to AIRBUS. Quote the number of this Service Bulletin. The address is :

AIRBUS

Material, Logistics and Suppliers

Weg beim Jaeger 150

D-22335 HAMBURG

GERMANY

For ordering by internet: http://spares.airbus.com

For ordering by fax: +49 40 50 76 25 90

(2) Price and Availability

Kit 570249B01R00

Cost : 4590 US dollars

Availability : 90 calendar days from receipt of order

The Kit availability given above is the standard lead time from the date of your purchase

order. If you require the Kit(s) before this time, please include a retrofit planning schedule

with your order so that we can try to comply with your requirements.

The sales terms (costs and availability) are estimated in relation to economic conditions

at the issue date of the Service Bulletin.

B. INDUSTRY SUPPORT INFORMATION

AIRBUS will provide a 50 % reduction to the applicable sales prices given in paragraph 2A(2)

for orders placed before 31 December 2013.

C. LIST OF COMPONENTS

Kit 570249B01R00

ITEM NEW PART No. QTY UM KEYWORD ITEM OLD PART No. INT INST DISP

1 A5724085320200 1 Bush (1) A5724085320000 *

2 A5724078620400 1 Bush (2) A5724078620200 *

NOTE(*) Discard

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

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A300

SERVICE BULLETIN

D. LIST OF MATERIALS - OPERATOR SUPPLIED

(1) Consumable Materials

DESCRIPTION REFERENCE TO CML QTY PER A/C INST/DISP

MAT No.

Honing Fluid Mat. No. 06-010 As required

Varnish Mat. No. 07-018 As required 01

Sealant, Anaerobic Mat. No. 08-003 As required

Fuel Tank Sealant Polysulfide Mat. No. 09-002 As required

Adhesion Promoter For Polysulfide

Sealant

Mat. No. 09-028 As required

Solvent General Purpose Mat. No. 11-026 As required

Chemical Conversion Coating Yellow

Aluminum

Mat. No. 13-002 As required

Polyurethane Gloss Finish (Clear

Basecoat)

Mat. No. 16-021B As required

Marker Pen 8404 None 1 02

NOTE(01) Mat. No. 07-018 is an alternative lacquer to Mat. No. 16-021B when used to

protect written part numbers.

NOTE(02) The Marker Pen 8404 can be procured from :

Edding (UK) Ltd.

Merlin Centre

Acrewood Way

St. Albans

Herts

England

(2) Components

None

E. PARTS TO BE RE-IDENTIFIED BY THE OPERATOR

ITEM NEW PART No. KEYWORD ITEM OLD PART No. INT

* Gear Rib A57240810000 02

* Gear Rib A57240810001 02

* Gear Rib A57240810004 02

* Gear Rib A57240810005 02

* Gear Rib A57240810008 02

* Gear Rib A57240810009 02

NOTE : * Re-identify by marking the SB number "SB A300-57-0249" adjacent to the old

part number.

F. TOOLING - PRICE AND AVAILABILITY

ITEM PART NUMBER QTY DESCRIPTION

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 8

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A300

SERVICE BULLETIN

044A411058D 1 MLG Rib 5 Toolkit

NOTE(01) The tool kit contains the following items for the removal of the bushes, Items (1)

and (2) (Refer to Figure 1, Sheet 2):

- Qty 1 0044A411058D-33 Split Location Ring

- Qty 1 0044A411058D-35 Bolt

- Qty 1 0044A411058D-43 Enerpac Cylinder

- Qty 1 0044A411058D-44 Enerpac Hand Pump

- Qty 1 0044A411058D-45 Enerpac Connector Hose

- Qty 1 0044A411058D-46 Spherical Washer

- Qty 1 0044A411058D-47 Location Block

- Qty 4 0044A411058D-48 Bolt (for Item 47)

- Qty 1 0044A411058D-49 Thrust Washer

- Qty 2 0044A411058D-50 Nut

- Qty 1 0044A411058D-51 Reaction Block (Aft Bush Item (1))

- Qty 1 0044A411058D-86 Captive Washer

- Qty 1 0044A411058D-87 Shoulder Screw (for Item 86)

- Qty 1 0044A411058D-90 Reaction Block (Fwd Bush Item (2))

NOTE(02) The tool kit contains the following items for the installation of the bushes, Items

1 and 2 (Refer to Figure 1, Sheet 3):

- Qty 1 0044A411058D-35 Bolt

- Qty 1 0044A411058D-38 Installation Block

- Qty 1 0044A411058D-43 Enerpac Cylinder

- Qty 1 0044A411058D-44 Enerpac Hand Pump

- Qty 1 0044A411058D-45 Enerpac Connector Hose

- Qty 1 0044A411058D-46 Spherical Washer

- Qty 2 0044A411058D-50 Nut

- Qty 1 0044A411058D-51 Reaction Block (Fwd Bush Item 2)

- Qty 1 0044A411058D-86 Captive Washer

- Qty 1 0044A411058D-87 Shoulder Screw (for Item 86)

- Qty 1 0044A411058D-90 Reaction Block (Aft Bush Item 1)

NOTE(03) The tool kit will also contain an In-Line Honing Tool PN MT58133-195 to line hone the

bushes to the finished internal diameter after installation (Refer to Figure 2). Also

in the tool kit is a shorter In-Line Honing Tool PN MT58133-197 which can be used

as an alternative and an Alignment Tool (truing sleeve) PN MT19048 to set up the

In-Line Honing Tools.

Also included are additional tools required in case a repair is necessary.

G. SPECIAL TOOLS

None

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 9

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A300

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

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A300

SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL

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, CLEANING.

(1) Preparation

(a) Config. 01

1 Lift the aircraft on jacks (Refer to AMM 07-11-00, Page block 1).

2 Remove the LH and RH MLG legs (Refer to AMM 32-11-11, Page block 401).

3 Put access platforms in position in Zones 730/740.

(2) Standard Practices

(a) Part marking with indelible ink (Refer to PMS 01-06-12 and Para. 2.D.).

(b) Application of protective treatments (Refer to SRM 51-40-18, Page block 1).

(c) Application of a bead seal (fillet) (Refer to SRM 51-40-20, Page block 701).

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 11

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SERVICE BULLETIN

B. MODIFICATION

NOTE : The worksteps that follow are applicable to the LH and RH wings.

(1) Config. 01

(a) Removal of Bushes

Refer to Figure 1, Sheet 1 and 2

1 Use the removal/installation tool from the tool kit 044A4111058D to remove

these items :

1 Bush A5724085320000 Item (1) Discard

1 Bush A5724078620200 Item (2) Discard

(b) Inspection of Lug Faces and Bores

Refer to Figure 1, Sheet 1

1 Clean the bores of the lugs with a plastic spatula and Solvent General Purpose

(Mat. No. 11-026).

2 Visually inspect the bore and the spotfaces of the lug to make sure there is no

corrosion and/or damage.

3 Do a dye penetrant flaw detection test of the bore and the spotfaces of the lug

to make sure there is no corrosion and/or damage (Refer to Part 1 of NTM

51-60-00, Page block 1).

4 Do a check to make sure that the diameter of the bore of the lug (dimension Y) is

within the tolerance of 5.1900 to 5.1916 ins. (131.826 to 131.866 mm).

5 If no damage and/or corrosion is found and dimension Y is within the tolerance

do workstep (1) (c).

6 If there is damage and/or corrosion found, or if dimension Y is more than the

given tolerance, report the findings to AIRBUS and wait for advice for repair

R57240221 and re-boring tool 044A411058D.

(c) Installation of Bushes

Refer to Figure 1, Sheet 1 and 3 and Figure 2, Sheet 1 and 2

1 Before installing the bushes check that the dimension Z (Refer to Figure 1, Sheet

1) is likely to be achieved. This can be done by measuring the thickness of the

lug and the thickness of the flange on the two bushes and adding them together.

Dimension Z should be between 2.715 and 2.727 in (68.97 and 69.26 mm). If

the dimension Z is outside the tolerance, contact AIRBUS.

2 Apply Chemical Conversion Coating Yellow Aluminum (Mat. No. 13-002) to the

bore and the spotfaces of the lug.

3 Apply Sealant, Anaerobic (Mat. No. 08-003) to the bores of the lug and the

mating surface for the seat of the bush flange.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 12

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A300

SERVICE BULLETIN

WARNING : LIQUID NITROGEN IS DANGEROUS. OBEY THE MANUFACTURERS

INSTRUCTIONS AND WEAR THE CORRECT PROTECTIVE

CLOTHING WHEN YOU USE LIQUID NITROGEN.

CAUTION : DO NOT PUT MORE THAN ONE BUSH AT A TIME INTO THE LIQUID

NITROGEN, USE CLEAN TONGS TO REMOVE THE BUSH FROM

THE LIQUID NITROGEN AND TO INSTALL IT IN THE BORE OF

THE LUG.

4 Install these items from Kit 570249B01R00 as follows:

1 Bush A5724085320200 Item 1

1 Bush A5724078620400 Item 2

- freeze each bush in sequence in liquid nitrogen for not less than three minutes,

- use the installation tool (refer to Figure 1 Sheet 3) to install each bush in

sequence in the applicable end of the bore of the forward lug of the aft

gear-rib bearing. Make sure that the bushes are fully installed,

- allow the bushes to return to ambient temperature.

5 Make sure that the dimension Z is within the tolerance of 2.715 to 2.727 in.

(68.97 to 69.26 mm).

6 Make sure that the space between the bushes, Item 1 and Item 2 is free

of sealant.

7 Assemble the in-line honing tool as shown, refer to Figure 2, Sheet 1.

8 Use the alignment tool to set up the in-line honing tool as shown, refer to

Figure 2, Sheet 2.

CAUTION : USE ONLY "DELAPENA" HONING FLUID (Mat. No. 06-010).

9 Use the in-line honing tool to finish the internal diameter (dimension X) of the

bushes, Item 1 and Item 2, within the tolerance of 4.9210 to 4.9226 in. (124.994

to 125.034 mm) and to a surface finish of 32 micro inches (0.81 microns).

10 Use Solvent General Purpose (Mat. No. 11-026) and a cloth to clean the area.

11 Apply Adhesion Promoter For Polysulfide Sealant (Mat. No. 09-028) around the

flanges of the bushes, Items 1 and 2.

12 Apply a continuous bead of sealant around the edges of the bushes, Item 1 and

Item 2 to form a fillet seal, use Fuel Tank Sealant Polysulfide (Mat. No. 09-002).

13 Use Solvent General Purpose (Mat. No. 11-026) and a cloth to remove any

unwanted sealant.

14 Apply Polyurethane Gloss Finish (Clear Basecoat) (Mat. No. 16-021B) to the

fillet seals to protect the sealant from hydraulic fluid.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 13

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A300

SERVICE BULLETIN

(d) Re-identify the gear ribs 5 by marking this SB No. adjacent to the PN, refer to Para.

2.E. and Para. 3.A.(2)(a). Apply Polyurethane Gloss Finish (Clear Basecoat) (Mat.

No. 16-021B) to protect the written SB No. from hydraulic fluid.

C. TEST

(1) Config. 01

(a) The test procedures necessary for the LH and RH MLG Leg are included in the

reference for installation (Refer to Para. D.(1)(a)).

D. CLOSE UP

(1) Config. 01

(a) Install the LH and RH MLG legs (Refer to AMM 32-11-11, Page block 401).

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

equipment.

(c) Remove the access platforms from Zones 730/740.

(d) Lower the aircraft off jacks (Refer to AMM 07-11-00, Page block 1).

E. DOCUMENTATION

Write in the applicable aircraft records that you have done all the work given in the Service Bulletin.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 14

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A300

SERVICE BULLETIN

Figure 1, Sheet 1

Config. 01: Replacement of Gear Support Rib Bushes

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 15

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A300

SERVICE BULLETIN

Figure 1, Sheet 2

Config. 01: Replacement of Gear Support Rib Bushes

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 16

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A300

SERVICE BULLETIN

Figure 1, Sheet 3

Config. 01: Replacement of Gear Support Rib Bushes

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 17

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A300

SERVICE BULLETIN

Figure 2, Sheet 1

Config. 01: Line Honing of Bushes

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 18

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A300

SERVICE BULLETIN

Figure 2, Sheet 2

Config. 01: Line Honing of Bushes

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 19

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A300

SERVICE BULLETIN

This Page Intentionally Left Blank

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 20

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A300

SERVICE BULLETIN

REPORTING SHEET

TITLE : WING - MAIN LANDING GEAR ATTACHMENT - INTRODUCTION OF BUSHES WITH INCREASED

INTERFERENCE FIT IN THE GEAR RIB 5 AFT BEARING FORWARD LUG

MODIFICATION No. : 13348H5689

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 embodiement:

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

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

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 : Advance data................................................................................... YES/NO

Or : Intermediate/Temporary 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: SEDCC1 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 : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 1 of 1

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A300

SERVICE BULLETIN

REPORTING QUALITY

TITLE : WING - MAIN LANDING GEAR ATTACHMENT - INTRODUCTION OF BUSHES WITH INCREASED

INTERFERENCE FIT IN THE GEAR RIB 5 AFT BEARING FORWARD LUG

MODIFICATION No. : 13348H5689

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 futher 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 4 3 2 1

-Quality rating of the Accomplishment Instructions 4 3 2 1

-Quality rating of the Illustrations 4 3 2 1

-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 X Mod/Inspection

X Manpower Operator Supplied 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: SEMB Service Bulletins Management

FAX: (+33) 5 61 93 42 51

Or via your Resident Customer Support Office.

DATE : May 22/07 SERVICE BULLETIN No. : A300-57-0249

REVISION No. : 02 - Jun 18/10 Page : 1 of 1

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