# BAE Systems Inspection Service Bulletin ISB.32-186: No revision named

- Rights: © 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.
- Document: [BAE Systems Inspection Service Bulletin ISB.32-186](https://openairdocs.org/service-documents/bae-systems/isb32-186.md)
- Title as filed: U.S. DOT/FAA - ISB32-186 R00
- Pages: 14
- PDF: https://openairdocs.org/files/sha256/da/68/da683b9dbebf03cd3a99a04345e21025a08cc9021872ab83ab0a004e9bf56645
- Page: https://openairdocs.org/service-documents/bae-systems/isb32-186/file/da683b9dbebf

## Text

This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1 (OCR)

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

### Page 2 (OCR)

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

### Page 3 (OCR)

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

### Page 4 (OCR)

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

### Page 5 (OCR)

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

### Page 6 (OCR)

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

### Page 7 (OCR)

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

### Page 8 (OCR)

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

### Page 9 (OCR)

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

### Page 10 (OCR)

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

### Page 11 (OCR)

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

### Page 12 (OCR)

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

### Page 13 (OCR)

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 (0) 1292 675432
e-mail raengliaison@baesystems.com
Date: 12-APR-2012  ISB. 32-186
Revision: Initial issue  Page 13 of 14
Printed in England

### Page 14 (OCR)

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 14 of 14
Printed in England

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