BAE SYSTEMS (Operations) Limited, Prestwick InternationaL Airport, Ayrshire,

KA9 2RW, ScotLand.

INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

TITLE: LANDING GEAR - fIILG- INSPECTION OF THE SHOCK ABSORBER LOWER

ATTACHMENT PIN.

1.Planning information

A.Effectivity

(1) Aircraft

Aircraft affected by this inspection are defined below

All BAe 146 100, 200, 300 Series

All AVRO 146-RJ70, RJ85, RJ100 Series

Check the aircraft technicaL records for accomplishment of

this inspection before actioning this Inspection Service

Bulletin.

B.Reason

Degradation of the chromiu~ plating on the outer diameter of the

shock absorber lower attachment pin has occurred in service.

Excessive corrosion of the unprotected steel could lead to pin

fracture.

C .Description

The main landing gear (MlG) shock absorber is removed and lower

attachment pin is inspected for corrosion.

Work comprises:-

-Jack ai rcraft.

-Remove the MLG shock absorber.

-Do Messier Dowty Ltd. Service BulLetin 146-32-157.

-InstaLL a serviceabLe MLG shock absorber.

-Test.

-Close up.

-Remove aircraft jacks.

D.Compliance

The technical content of this service bulletin is the subject of

EASA AIRWORTHINESS DIRECTIVE consultation.

InitiaL inspection to be accompLished within 4000 landings or 2

years, whichever is the sooner from the initial issue date of this

inspection service bulletin.

Date: 12-NOV-2009

Revision: InitiaL issue

Printed in England

158.32-176

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

Repeat inspections to be accompLished every 8000 Landings or 4

years, whichever ;s the sooner after the initiaL inspection.

Accomplish this inspection service buLLetin at each overhauL of

the MLG unit.

E.Approval

The technical information contained in this document has been

approved under the authority of EASA Part 21 Approval No.

EASA.21J.047.

F .Manpower

(1) 3 man-hours per aircraft (instalL/remove aircraft jacks and

test) .

(2) Refer to Messier-Oowty Ltd. Service Bulletin 146-32-157 for

the man-hours to inspect the MLG shock absorber lower pin.

G.MateriaLs - cost and availability

Refer to Messier-Dowty Ltd. Service BuLLetin 146-32-157.

H.TooLing - cost and availability

Refer to Messier-Dowty Ltd. Service BuLLetin 146-32-157.

I.Weight and baLance

No Effect.

J .References

Aircraft Maintenance ManuaL AMM 07-00-00, AMM Chapter 32-10-14 and

AMM Chapter 32-30-00, page block 501.

Refer to Messier-Dowty Ltd. Service BuLLetin 146-32-157 at Latest

issue.

K.Publications affected

Refer to Messier-Dowty Ltd. Service BulLetin 146-32-157.

NOTE: The Maintenance Review Board Report and Maintenance PLanning

Document will be reviewed, for a possibLe inclusion of a

scheduled task.

Date: 12-NOV-2009

Revision: Initial issue

Printed in England

1SB.32-176

Page 2 of 12
BAE SYSTEMS

INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

L.ElectricaL load data

Not applicable.

M.Software Accomplishment Summary

Not applicabLe.

".Aircraft Noise LeveLs

Not applicable.

Oate: 12-NOV-2009

Revision: Initial issue

Printed in England

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Date: 12-NOV-2009

Revision: Initial issue

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BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

2.Accomplishment instructions

A.Genera l

WARNING: WHENEVER ANY PART OF THE MAIN OR ASSOCIATED SYSTEM IS

DiSMANTLED, ADJUSTED, REPAIRED OR RENEWED, THAT PART OF

THE SYSTEM WHICH HAS BEEN DISTURBED SHALL BE SUBJECTED TO

A SECOND INDEPENDANT INSPECTION fOR SECURITY OF lOCKING

DEVICES, fULL AND FREE MOVENENT, DIRECTION AND TENSiON

CHECKS. THIS WORK MUST BE DONE IN ACCORDANCE WITH THE

ACCEPTABLE MEANS Of COMPLIANCE M.A. 402 (a) TO EASA PART

H, OR TO AN EQUIVALENT NATIONAL STANDARD.

(1) The following abbreviations are used within this document

AMM - Aircraft Maintenance Manual

(2) Observe alL WARNINGS and CAUTIONS appearing in the Aircraft

Maintenance Manual (AMM) referred to in this Service

Bulletin.

B.Preparation

(1) Refer to AMH 07-00-00. Jack the aircraft.

C.Inspection

(1) Refer to AMM Chapter 32-10-14. Remove the MLG shock absorber.

(2) Do Messier Dowty Ltd. S6 146-32-157.

(3) Refer to AMM Chapter 32-10-14. Install a serviceable MLG

shock absorber lower attachment pin.

(4) Refer to AMM Chapter 32-10-14. Install a serviceable MLG

shock absorber.

D.Test

(1) Refer to AMM Chapter 32-30-00, page block 501. Do an

operational test of the landing gear. Perform a minimum of 5

extension/retention cycles.

LClose up

(1) Make certain work area is clean, and clear of tools and

miscellaneous equipment.

(2) Refer to AMM 07-00-00. Remove aircraft jacks.

Date: 12-NOV-2009

Revision: Initial issue

Printed in England

1S6.32-176

Page 5 of 12
BAE SYSTEMS

INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

F.Documentation

(1) Complete a copy of Inspectlon Report attached to this

Inspection Service Bulletin and return by fax or ~aiL_

OR

Return all required Inspection Report details via e-mail.

Date: 1Z-NOV-2009

Revision: Initial issue

Printed in EngLand

15B.32-176

Page 6 of 12
BAE SYSTEMS

INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

3.Material information

Refer to Messier Dowty Ltd. SB 146-32-157.

Date: 12-NOV-2009

Revision: Initial issue

Printed in Eogland

158.32-176

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INSPECTION SERVICE BULLETIN

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Date: 12-NOV-2009

Revision: Initial issue

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BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

APPENDIX 1

1.INSPECTION REPORT

A.Complete and return this form as detaiLed

OPERATOR:

AIRCRAFT REGISTRATION:

CONSTRUCTORS NUMBER:

FLIGHT HOURS:

lANDIM6S:

DATE INSPECTION PERFORMED:

FINDINGS:

To: Customer Liaison,

Custouer Support (BuiLding 37),

BAE SYSTEMS (Operations) limited,

Prestw;ck International Airport,

Ayrshire,

KA9 2RW,

Scotland.

Fax t 44 (0) 1292 675432

e-maiL raengLiaison@baesystems.com

Da t e: 12-NDV-2009

Revision; Initial issue

Printed in England

15B.32-176

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Date: 12-NOV-2009

Revision: Initial issue

Print~d in England

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INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

APPENDIX 2

1.CONTINUED AIRWORTHINESS INSTRUCTIONS

(1) There are no continued airworthiness instructions appLicabLe

to this inspection service bulletin.

A.Scheduled Maintenance

(1) Not applicable.

B.Re~oval Procedures

(1) Not applicable.

(.Installation Procedures

el) Not applicable.

D.Test Procedures

(1) Not applicable.

E.Troubleshooting

(1) Not appLicable.

Date: 12-NOV-2009

Revision; Initial issue

Printed in Englend

I$B.32-176

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INSPECTION SERVICE BULLETIN

BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

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Date: 12-NOV-2009

Revision: Initial issue

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