Copy · U.S. DOT/FAA - ISB32-186 R00 · 14 pages

© BAE Systems. Filed by the FAA in regulations.gov docket FAA-2013-1026; AD 2014-16-18 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

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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 - INTRODUCTION OF COMPLIANCE PERIODS IN ADVANCE OF A 16,000 CYCLE SAFE LIFE FOR NOSE LANDING GEAR MAIN FITTINGS.

1.Planning information A.Effectivity

(1) Aircraft Aircraft affected by this inspection are defined below:- BAe 146 Series 100 and AVRO 146-RJ70 with the following NLG Main Fitting Part Nos.

Table 1.

Part No. Description 200876293 Main fitting S/A 200876340 Main fitting 200876294 Main fitting S/A 200876341 Main fitting 200876295 Main fitting S/A 200876342 Main fitting 200876296 Main fitting S/A 200876343 Main fitting 201012203 Main fitting S/A 200876343 Main fitting 201012206 Main fitting S/A 200876341 Main fitting 201012207 Main fitting S/A 200876340 Main fitting 201012209 Main fitting S/A 200876342 Main fitting 200876297 Main fitting S/A Date: 12-APR-2012 ISB.32-186 Revision: Initial issue Page 1 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Part No. Description 200876344 Main fitting 200876299 Main fitting S/A 200876345 Main fitting 201012201 Main fitting S/A 200876344 Main fitting 201012204 Main fitting S/A 200876345 Main fitting 201138206 Main fitting S/A 201138304 Main fitting 201138207 Main fitting S/A 201138305 Main fitting 201138209 Main fitting S/A 201138307 Main fitting 201138210 Main fitting S/A 201138308 Main fitting 201138212 Main fitting S/A 201138310 Main fitting 201138213 Main fitting S/A 201138311 Main fitting 201138215 Main fitting S/A 201138313 Main fitting 201138217 Main fitting S/A 201138315 Main fitting 201138219 Main fitting S/A 201138317 Main fitting 201138220 Main fitting S/A 201138318 Main fitting Date: 12-APR-2012 ISB.32-186 Revision: Initial issue Page 2 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Part No. Description 201138222 Main fitting S/A 201138320 Main fitting 201138223 Main fitting S/A 201138321 Main fitting 201138225 Main fitting S/A 201138323 Main fitting BAe 146 Series 200 and AVRO 146-RJ85 with the following NLG Main Fitting Part Nos.

Table 2.

Part No. Description 200876293 Main fitting S/A 200876340 Main fitting 200876294 Main fitting S/A 200876341 Main fitting 200876295 Main fitting S/A 200876342 Main fitting 200876296 Main fitting S/A 200876343 Main fitting 201012203 Main fitting S/A 200876343 Main fitting 201012206 Main fitting S/A 200876341 Main fitting 201012207 Main fitting S/A 200876340 Main fitting 201012209 Main fitting S/A 200876342 Main fitting 200876297 Main fitting S/A Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 3 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Part No. Description 200876344 Main fitting 200876299 Main fitting S/A 200876345 Main fitting 201012201 Main fitting S/A 200876344 Main fitting 201012204 Main fitting S/A 200876345 Main fitting 201138206 Main fitting S/A 201138304 Main fitting 201138207 Main fitting S/A 201138305 Main fitting 201138209 Main fitting S/A 201138307 Main fitting 201138210 Main fitting S/A 201138308 Main fitting 201138212 Main fitting S/A 201138310 Main fitting 201138213 Main fitting S/A 201138311 Main fitting 201138215 Main fitting S/A 201138313 Main fitting 201138217 Main fitting S/A 201138315 Main fitting 201138219 Main fitting S/A 201138317 Main fitting 201138220 Main fitting S/A 201138318 Main fitting Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 4 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Part No. Description 201138222 Main fitting S/A 201138320 Main fitting 201138223 Main fitting S/A 201138321 Main fitting 201138225 Main fitting S/A 201138323 Main fitting BAe 146 Series 300 and AVRO 146-RJ100 with the following NLG Main Fitting Part Nos.

Table 3.

Part No. Description 200876297 Main fitting S/A 200876344 Main fitting 200876299 Main fitting S/A 200876345 Main fitting 201012201 Main fitting S/A 200876344 Main fitting 201012204 Main fitting S/A 200876345 Main fitting 201138206 Main fitting S/A 201138304 Main fitting 201138207 Main fitting S/A 201138305 Main fitting 201138210 Main fitting S/A 201138308 Main fitting 201138217 Main fitting S/A 201138315 Main fitting 201138220 Main fitting S/A Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 5 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Part No. Description 201138318 Main fitting B.Reason In-service cracking of The Nose Landing Gear (NLG) Main Fitting has required that a revised safe life of 16,000 landings is introduced for the NLG Main Fitting Part Nos. Listed in para.1.A Table 1, Table 2 and Table 3. The revised safe life will be introduced to the Aircraft Maintenance Manual at an appropriate time. This Inspection Service Bulletin provides grace periods for the replacement of NG Main Fittings that have already exceeded 16,000 Landings.

C.Description The aircraft records are checked to determine the compliance for the replacement of the NG Main Fitting and the NLG Main Fitting is replaced with a new or serviceable item within the identified grace period.

Work comprises:-

- Check the aircraft records and any log cards of spare NLG to determine landings achieved by NLG Main Fitting.

- Determine compliance for replacement of NLG Main Fitting.

- Replace NLG Main Fitting within specified compliance period.

D.Compliance The technical content of this Inspection Service Bulletin is the subject of EASA AIRWORTHINESS DIRECTIVE consultation.

The 16,000 Flight Cycle Life is applicable to all BAe 146 and AVRO 146-RJ NLG Main Fittings.

The new life will come into effect as follows:

- For NLG Main Fitting that have accrued more than 29,000 Flight Cycles at the time the Inspection Service Bulletin is published, the NLG Main Fitting will be retired within 12 months of Inspection Service Bulletin publication.

- For NLG Main Fitting that have accrued between 20,000 Flight Cycles and 28,999 Flight Cycles at the time the Inspection Service Bulletin is published, the NLG Main Fitting will be retired within 24 months of Inspection Service Bulletin publication.

- For NLG Main Fitting that have accrued between 16,000 Flight Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 6 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Cycles and 19,999 Flight Cycles at the time the Inspection Service Bulletin is published, the NLG main fitting will be retired within 36 months of Inspection Service Bulletin publication.

- For NG Main Fitting that have 028102 accrued Less than 16,000 Flight Cycles at the time the Inspection Service Bulletin is published, the NLG Main Fitting will be retired once it reaches 16,000 Flight Cycles or 36 months after Inspection Service Bulletin publication, whichever is later.

The NLG Main Fitting Lives will be put in Chapter 05-10-15 of the AMM at an appropriate time.

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 To inspect as defined in para. 2 - 1.0 man-hours.

This man-hour estimate does not include time for gaining access to, removal/installation and test of the NLG Main Fitting.

G.Materials - cost and availability Not applicable.

H.Tooling - cost and availability Not applicable.

I.Weight and balance No Effect.

J. References Aircraft Maintenance Manual AMM 32-20-11 K.Publications affected AMM 05-10-15 L.Electrical load data Not applicable.

Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 7 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank.

Date: 12-APR-2012 ISB.32-186 Revision: Initial issue Page 8 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

2.Accomplishment instructions A. General

(1) The following abbreviations are used within this document:- AMM - Aircraft Maintenance Manual Observe all WARNINGS and CAUTIONS appearing in the AMM referred to in this Inspection Service Bulletin.

NOTE: NG Main Fitting can be replaced Local to the aircraft

i.e. the requirement to send the NG assembly to a specialist landing gear maintenance facility can be avoided. To achieve Local replacement of the NLG Main Fitting refer to Messier Services UK or an appropriately approved MRO.

B.Preparation

(1) Check the aircraft records to determine landings achieved by NLG Main Fitting.

C. Inspection

(1) Determine compliance para.1.D for replacement of the NLG Main Fitting.

(2) Refer to the AMM 32-20-11 page block 401 and replace NLG Main Fitting within specified compliance.

D. Test

(1) Refer to AMM 32-20-11 page block 401.

E. Close up

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

F. Documentation Complete a copy of Inspection Report attached to this Inspection Service Bulletin and return by fax or mail.

OR Return all required Inspection Report details via e-mail.

Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 9 of 14 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank.

evislon ate: 12-APR-tial issu Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

3. Material information None.

Date: 12-APR-2012 SB.52-18 Revision: Initial issue age Tot T Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank.

Date: 12-APR-2012 ISB. 32-186 Revision: Initial issue Page 12 of 14 Printed in England

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