BAE SYSTEMS (Operati ons) Limited, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland. INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

TITLE : LANDING GEAR

- INTRODUC TION 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 Fi tting Part Nos.

Part No. 200876293 200876340 200876294 200876341 200876295 200876342 200876296 200876343 201012203 200876343 20 1012206 200876341 201012207 200876340 201012209 200876342 200876297

Date: 12-APR-2012 Revision: Initial issue Table 1. Description Main fitting Main fitting Main fi tting Main fitting Main fitting Main fi tting Main fitti ng Main fitting Main fitting Main fi tting Main fitting Main fitting Main fitting Main fitting Main fitting Main fitting Main fitting

Printed in England S/A
S/A

S/A

S/A

S/A

S/A
S/A

S/A

S/A

ISB.32-186 Page1of14

## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

Part N o. 200876344 200876299 200876345 201 912201 200876344 201012204 200876345 2011 38206 201138304 201138207 201138305 201138209 201138307 201138210 201138308 201138212 20113831 0 201138213 201138311 201138215 2011383 13 201138217 201138315 201138219 2011383 17 201138220 201138318



### Date : 12-APR-2012 Revision: Initial issue Description Main fitting Main fitting S/A Main fi tting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A M

ain fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitting

Printed in England 

### ISB.32-186 Page2of14

## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 1 46 SERIES/AVRO 146-RJ SERIES A IRCRAFT

Part No

. 201138222 201138320 201138223 201138321 201138225 201138323 BAe 146 Series 200 Main Fitting Part

Part No. 200876293 200876340 200876294 200876341 200876295 200876342 200876296 200876343 20 1012203 200876343 201012206 200876341 201012207 200876340 201012209 200876342 200876297

Date: 1 2-APR-20 12 Rev ision: Initial issue Description Main fitting S/A Main fitting M

ain fitting S/A M

ain fitt ing Main fitt ing S/A Main fit ting

and AVRO 146-RJ85 with Nos. Table 2. Description Main fitt ing S/A Main fitting Main fitting S/A Main fitti ng Main fitting S/A Main fitting Main fi tting S/A Main fitting M

ain fitting S/A Main fitting Main fitti ng S/A Main fitting Main fi tting S/A Main fitting Main fitting S/A Main fi tting Main fi tt ing S/A

Printed in England the following NLG

ISB

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## BAE SYSTEMS INSPECTION SERVICE BULL ETIN B

A

e 146 SERIES / AVRO 146-RJ SER IES AIRCRA F T

Part No. 200876344 2

0

0876299 200876345 201012201 200876344 201012204 200876345 201138206 201138304 201138207 201138305 20 1138209 201138307 201138210 201138308 201138212 201138310 201138213 201138311 20 1138215 201138313 201138217 2011 38315 201138219 201138317 201138220 201138318



### Date : 12

- APR-2012 Revision: Initial issue Descri ption Main fitting

**~a**in fi tti ng S/A !lain fitting Main fitting S/A Main fitting Main fi tti n g S/A Main fitting Main fitting S/A "ain fitting Main fitt ing S/A Main fitting Main fitting S/A Main fitting Main fitting 

### SIA Main fitting Main fitting 

### SIA Main fitting Main fitting 

### SIA Main fitt ing Main fitting S/A M

ain fitting "ain fitting S/A Main fi tti n g Main fitting S/A Main fitting Main fitting S/A Main fitting

Printed in E ngland 

### ISB.32-186 Page4of14

## BAE SYSTEMS INSPECTION SERVIC E BULLETIN BAe 146 SERIES/AV RO 146-RJ SERIES AIRCRAFT

Part No. 201138222 2011383 2 0 201138223 2011 3832 1 201138225 201138323 BAe 146 Series 300 Main F ittin g Par t

Part No

. 200876297 200876344 200876299 200876345 201012201 200876344 201012204 200876345 20113 8206 201138304 201138207 201138305 201138210 201138308 20 1138217 201138315 201138220

Date: 12-APR-2012 Revis ion : Ini tial issue Description Main fi tti ng S/A Main fitting Main fitting S/A Main fitting Main fitting S/A M

ain fitting and AVRO 146-RJ100 with Nos. Table 3. Description Main fitting S/A Main fitting M

ain fitting S/A Main fitting Main fi tting S/A Main fitting Main fitting S/A Main fitting Main fitt ing S/A Main fitting Main fitting S/A Main fitting Main fitting S/A Main fitti ng M

ain fitting S/A Main fitting Main fi tting S/A

Printed in Eng land the following NLG

ISB

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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 NLG Main Fittings that have already exceeded 16,000 landings

. C.D escription The aircraft records are checked to determine the compliance for the replacement of the NLG 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 M ain 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 Revision: Initial issue Printed in England ISB.32-186 Page6of14

## BAE SYSTEMS INSPECTION SERVIC E BULLET IN BAe 146 SERIES/AVRO 146-RJ SERIES A IRCRAFT
Cycle s and 19,999 Flight Cycles at the time the Inspection Service Bulletin is publi she d, the NLG main fitting will be retired within 36 months of Inspection Service Bulletin pub lication.

- For NLG Main Fi tting that have accru ed less than 16,000 Flight Cycles at the time the Inspection Service Bulletin is pub lished , the NLG M ain Fitting will be retired once it reaches 16,000 Flight Cycl es or 36 months after Inspection Service Bulletin publication, whichever is later

. The NLG Main Fi tting live s 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 Par t 21 Approval No. EASA

. 21J.047

. F

.Manpower To in spect as defined in para. 2

- 1

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

. Materials- cost and availability Not applicable. H.Tooli ng- cos t and availability Not applicable. !. Weight and balance

No Effec t. J.References Aircraft Maintenance Manual AMM 32-20-11 K.Publications affected AMM 05-10-15 L

. Electr ical load data N

ot applicable

.

Date: 12-APR-2012 Rev i sion: In itia l issue Printed in England ISB.32-186 Page7 of 1 4

## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

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## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
2.Accomplishment instruction s A.General (1) The following abbreviations are used within this document:- AMM -Aircraft Maintenance Manual (2) Observe all WARNINGS and CAUTIONS appearing in the AMM referred to in this Inspection Service Bulletin

. NOTE: NLG Main Fitting can be re placed local to the aircraft i .e. the requirement to send the NLG assemb ly 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 M ai n 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.Clo se up (1) Make certain work area is clean, and clear of tools and miscellaneous equipment. F

. Documentation (1) 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

.

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## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

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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 Revision: Initial issue Printed in England 

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## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

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## BAE SYSTEMS INSPECTION SERVICE BULLETIN 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: LANDINGS: DATE INSPECTION PERFORMED: FINDINGS:

To: Customer Technical Support (Building 37), BAE SYSTEMS (Operations) limited, Prestwick International Airport, Ayrshire, 

### KA9 2RW, Scotland. Fax + 44 (Q) 1292 675432 e-mail raengliaison@baesystems.com

Date: 12-APR-2012 Revision: Initial issue Printed in England ISB.32-186 Page 13 of 14

## BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT

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