Copy · U.S. DOT/FAA - ISB.26-078 · 10 pages

© BAE Systems. Filed by the FAA in regulations.gov docket FAA-2013-0793, the docket of AD 2014-01-04. 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: INSPECTION OF FIRE BOTTLES FOR EXCESSIVE SOLDER BETWEEN OPERATING HEAD AND CONTAINER.

1.Planning information A.Effectivity

(1) Aircraft Aircraft affected by this inspection are defined below :- All BAe 146 301 Series AlL BAe 146 100, 200, 300 Series ALL AVRO 146-RJ70, RJ85, RJ100 Series Those aircraft fitted with Kidde Graviner engine and APU Automatic Fire Extinguisher 57333 series, that have been overhauled to CMM 26-21-40 at revisions up to and including revision 13.

Check the aircraft technical records for accomplishment of this inspection bulletin before actioning this Inspection Service Bulletin.

B. Reason A case has occurred where the use of excessive solder during fire bottle overhaul has resulted in the fire bottle failing to discharge when activated by the fire handle. The excessive solder has accumulated in the vicinity of the frangible plug, preventing the plug from fracturing and releasing the extinguishant.

C.Description This Inspection Service Bulletin details the procedure to inspect the engine and APU fire bottles. Removal and installation of the fire bottles is performed in accordance with the Aircraft Maintenance Manual (AMM) and examination to determine if the fire bottles are affected by the excessive solder issue is performed in accordance with Kidde Graviner Service Bulletin 26-080 at revision 1 or later.

Date: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 1 of 10 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT D. Compliance The technical content of this inspection Service Bulletin is the subject of EASA AIRWORTHINESS DIRECTIVE consultation.

This Inspection Service Bulletin is to be accomplished by 1st October 2012.

E. ApprovaL The technical information contained in this document has been approved under the authority of EASA Part 21 Approval No.

EASA.21J.047.

The technical information contained in this document has been approved under the authority of UK CAA Approval Reference:

AD/1852/05.

F.Manpower Refer to Kidde Graviner Service Bulletin 26-080 at revision 1 or later.

G.Materials - cost and availability None.

H.Tooling - cost and availability None.

I.Weight and balance None .

J. References AMM 12-10-24 page block 1, Electrical Power - Servicing AMM 26-20-11 page block 201, Engine Fire Extinguisher - Maintenance Practices AMM 26-21-31 page block 201, APU Fire Extinguisher - Maintenance Practices Kidde Graviner SB 26-080 at revision 1 or later.

K.Publications affected None.

Date: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 2 of 10 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT L.Electrical load data None .

Date: 21-SEP-2011 page 3 of 1 26-07 Revision: Initial issue 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: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 4 of 10 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 Aircraft Maintenance Manual (AMM) referred to in this Service Bulletin.

B.Preparation NOTE: Any bottle overhauled by Kidde Graviner or Hugens does not need inspection as the closing actions have been embodied.

Any bottle where the overhaul can be demonstrated to satisfy the requirements of Kidde Graviner Service Inspection Letter 01-10 does not need inspection as the closing actions have been embodied.

(1) Refer to AMM 12-10-24 and de-energize the aircraft busbars.

C.Inspection

(1) Remove the engine or APU fire bottle to be inspected in accordance with AMM 26-20-11 page block 201 or AMM 26-21-31 page block 201 including removal of cartridge, as appropriate,

(2) Inspect the fire bottle in accordance with Kidde Graviner SB 26-080 at revision 1 or later.

Install a serviceable fire bottle and test in accordance with AMM 26-20-11 page block 201 or AMM 26-21-31 page block 201 including installation of cartridge, as appropriate.

NOTE: The serviceable fire bottle must have passed the inspection in accordance with Kidde Graviner Service Bulletin 26-080 at revision 1 or later, or been overhauled in accordance with Kidde Graviner CMM 26-21-40 at revision 14 or later.

D. Test None.

Date: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 5 of 10 Printed in England

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BAE SYSTEMS

INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT E.Close 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.

(2) Record the accomplishment of this Inspection in the aircraft technical records.

G.Terminating action None.

Date: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 6 of 10 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: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 7 of 10 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: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 8 of 10 Printed in England

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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 (0) 1292 675432 e-mail raengliaison@baesystems.com Date: 21-SEP-2011 ISB. 26-078 Revision: Initial issue Page 9 of 10 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: 21-SEP-2011 ISB_ 26-078 Revision: Initial issue Page 10 of 10 Printed in England