# Bombardier Service Bulletin 84-24-47

Copy: Revision A ("U.S. DOT/FAA - Service Information - 1"), 46 pages: PDF https://openairdocs.org/files/sha256/8d/9c/8d9c8ace08eb2df6f20331d03351f93a073ad987c41ca120a8285e5323fee808; text https://openairdocs.org/service-documents/bombardier/sb-84-24-47/file/8d9c8ace08eb.md. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2012-0806; AD 2012-22-07 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Bombardier](https://openairdocs.org/service-documents/bombardier.md)
- Type: Service bulletin (Service Bulletin)
- Number: 84-24-47
- Latest revision known: 84-24-47, Revision A, dated September 14, 2011 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/bombardier/sb-84-24-47

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2012-22-07](https://openairdocs.org/ad/2012-22-07.md), effective Dec 14, 2012: Revision A

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/bombardier/sb-84-24-47/proposed.md).

## Text (46 pages)

Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2012-0806; AD 2012-22-07 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Some pages are 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

Revision ‘A’ 14 Sep 2011
DHC-8 (DASH 8)
SERVICE BULLETIN 84-24-47
Electrical Power - AC Contactor Box P/N 1152130-6 Series 4, -6 Series 1
and -6 Series 2 (Basic Aircraft Configuration) - Left Nacelle - Potential Wire
Chafing - Special Inspection / Rectification
This page transmits Revision ‘A’ of Service Bulletin 84-24-47, pages 1 thru 42
dated 14 Sep 2011.
This service bulletin is re-issued in its entirety for the reasons that follow:
-t h e SUBJECT block is revised to include AC Contactor Box P/N 1152130-6
Series 1 and -6 Series 2
-t h e Effectivity section is revised to include AC Contactor Box P/N 1152130-6
Series 1 and -6 Series 2
-t h e REASON section is revised to include AC Contactor Box P/N 1152130-6
Series 1 and -6 Series 2
-t h e DESCRIPTION section is revised to introduce rework part numbers of the
AC Contactor Box as P/N 1152130-6 Series 6 and -6 Series 7
-t h e References section is revised to convey the latest revision of this and the
enclosed Honeywell SB 1152130-24-126
-t h e Existing Parts Accountability section is revised to include Existing and
New Part Numbers
-t h e ACCOMPLISHMENT INSTRUCTIONS are revised as follows:
step B. (1) revised to include Series 1 & 2
step B (4) revised to include additional information and new Table 1
- step B. (5) & (6) revised to include reworked p/n’s
- replaced the initial issue of enclosed Honeywell SB 1152130-24-126 with
Revision 1 dated 31 Aug 2011.
The Compliance recommendation in the previous issue of this Service Bulletin is
affected by this revision. P/N 1152130-6 Series 1 and 1152130-6 Series 2 are
introduced at this revision and are subject to rework
Operators who have reworked p/n 1152130-6 Series 4 using the initial issue of
this Service Bulletin are unaffected by this revision.

### Page 2

Remove the initial issue of Service Bulletin 84-24-47 and replace with attached.
Previous issue(s) of Service Bulletin 84-24-47:
Initial issue - Pages 1 thru 42 dated 26 Apr 2011

### Page 3

D
S.B. 84-24-47
Page 1 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
SERVICE BULLETIN
Customer
Support
ATA SYSTEM: 2421 NUMBER: 84-24-47
BOMBARDIER AEROSPACE REGIONAL AIRCRAFT CONSIDER THIS
SERVICE BULLETIN TO BE PARTICULARLY SIGNIFICANT AND
URGES OPERATORS TO PROMPTLY EVALUATE THE CONTENTS
SUBJECT: Electrical Power - AC Contactor Box P/N 1152130-6 Series 4, -6
Series 1 and -6 Series 2 (Basic Aircraft Configuration) - Left Nacelle -
Potential Wire Chafing - Special Inspection / Rectification
1. PLANNING INFORMATION
A. Effectivity
Aircraft Affected:
In-Service: DHC-8 Aircraft Models 401 and 402 Serial Numbers 4001,
4003, 4004, 4006, 4008 thru 4354 & 4356 thru 4366 with AC
Contactor Box P/N 1152130-6 Series 4 or -6 Series 1 or -6
Series 2 (left nacelle).
Production: A production line check has been accomplished on Aircraft
Serial Numbers 4355 & 4367 thru 4373 to ensure that the
existing AC Contactor Box (ACCB’s) installed on the aircraft
are not subject to the requirements of this SB.
Aircraft Serial Number 4374 and subsequent are fitted with
post-SB configuration ACCB’s.
NOTE: The instructions in this Service Bulletin are only applicable to the systems
and parts installed at the time of delivery on the aircraft or as changed by
Bombardier Aerospace Service Bulletin(s). Before you do this bulletin,
examine all STC or equivalent action changes to make sure this bulletin
can be completed.

### Page 4

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 2 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
Spares Affected:
None
B. Reason
Problem: Some operators of the Q400 have reported finding damaged, chaffed or
loose wiring within the left AC Contactor Box P/N 1152130-6 Series 4 or
- 6S e r i e s1o r- 6S e r i e s2 .
A line check at the Bombardier manufacturing facility has discovered
similar issues.
Damaged, chaffed or loose wiring within the AC contactor box could
affect correct operation of:
- associated AC generator
- the windshield heater
- the ice detector
-t h e A O A v a n e h e a t e r
- the pitot probe heater
- the engine intake heater
- the prop de-ice system
- or possible loss of AC external power.
Solution: Honeywell has prepared and issued new Service Bulletin
1152130-24-126 (VSB).
Enclosed VSB 1152130-24-126 gives the instruction to inspect and rectify
the wiring within the left AC Contactor Box P/N 1152130-6 Series 4 or -6
Series 1 or -6 Series 2 by adjusting wire routing and improving wire
protection using conduit sleeving.
For additional information refer to the “ Description” section in enclosed
VSB 1152130-24-126.
C. Description
The procedures in this service bulletin give the instructions to do the tasks that
follow:
- lock pins are installed thru each main gear and main gear door mechanism
- the nose gear ground lock is engaged
- aircraft electrical systems are de-energized

### Page 5

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 3 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
- work stands are set-up under the left nacelle to gain access to existing AC
contactor box p/n 1152130-6 Series 4, -6 Series 1 or -6 Series 2 (located next to
the main gear wheel location on the nacelle left side)
- the contactor box is removed to agree with instructions provided in the aircraft
maintenance manual
- the wiring, fasteners and related parts inside the contactor box are carefully
cleaned, inspected and reworked to agree with the applicable instructions given
in enclosed VSB 1152130-24-126
- the contactor box is re-identified as p/n 1152130-6 Series 5 or -6 Series 6 or -6
Series 7 (as applicable) then it’s installed and tested (on wing) to agree with
instructions provided in the aircraft maintenance manual
- all tools, equipment and unwanted materials are removed from the work area
- close out.
D. Compliance
Bombardier Inc. highly recommends accomplishment of this service bulletin at the
operators earliest opportunity unless otherwise directed by the local airworthiness
authority.
A Transport Canada Airworthiness Directive is Pending.
E. Approval
The technical content of this service bulletin has been approved under the
authority of the Transport Canada Civil Aviation (TCCA) Design Approval
Organization No: DAO #93-Q-02.
This Service Bulletin does not affect Airworthiness Limitations (AWLs) or Damage
Tolerance Inspections (DTIs).

### Page 6

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 4 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
F. Manpower
It will take an estimated 7.0 man-hours to complete this service bulletin. The
breakdown of the man-hours is shown in the table that follows:
TASK MAN-HOURS
Job Set-Up 1.00
Procedure 4.00
Test / RTS 1.00
Close-Out 1.00
For any on-site labor assistance, please speak with a Fleet Services representative
for a quote. The Fleet Services group can be contacted via the
Q Series Technical Help Desk by telephone at 416-375-4000 or
email at : thd.qseries@aero.bombardier.com
G. Material - Price and Availability
Refer to the “Material Information” section para A. in enclosed VSB
1152130-24-126.
H. Tooling - Price and Availability
None
I. Weight and Balance
None
J. Electrical Load Data
Not affected
K. Publications Affected
Dash 8 Illustrated Parts Catalogue PSM 1-84-4....................
ModSums Manual PSM 1-84-12..................................

### Page 7

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 5 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
L. References
Revision ‘A’ of this service bulletin was prepared to the engineering drawings and
related data that follows:
Honeywell Service Bulletin 1152130-24-126 Revision 1 dated 31 Aug 2011
PCA 43280 Revision 0 (for internal reference only)
2. MATERIAL INFORMATION
A. Parts Required Per Aircraft
Refer to the “Material Information” section para C. in the enclosed VSB
1152130-24-126.
B. Parts Required to Modify Spares
Refer to the “Material Information” section para D. in the enclosed VSB
1152130-24-126.
C. Special Tools and Equipment Required
Refer to the “ Tooling” section para F. in enclosed VSB 1152130-24-126.
D. Existing Parts Accountability
The following parts may be affected by this service bulletin. Indented parts are
components of the next higher assembly. The quantity (Qty.) column lists the
quantity that may be affected per aircraft for non-indented parts and the quantity
p e rn e x th i g h e ra s s e m b l yf o ri n d e n t e dp a r t s .
Existing
Part Number Description Qty IC DC
New Part
Number PNC
1152130-6 Series 4 Left AC Contac-
tor Box
1 A RWK 1152130-6 Series 5 R
1152130-6 Series 1 Left AC Contac-
tor Box
1 A RWK 1152130-6 Series 6 R
1152130-6 Series 2 Left AC Contac-
tor Box
1 A RWK 1152130-6 Series 7 R
IC Interchangeability Code
A Not interchangeable.
B Removed Part. No direct replacement.
C Conditionally Interchangeable. Inst allation of superseded part negates the
intent of this special inspection & rectification service bulletin.

### Page 8

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 6 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
DC Disposition
DIS Discard Part.
MUI Multiple Usage Item: Return to stock if serviceable.
RWK Inspect / Rework existing part in accordance with this service bulletin.
RWI Rework existing part per .....
SAL Salvage. Return to operator’s stores for salvage consideration.
PNC Part Number Code
N No equivalent Bombardier Inc. part number for reworked part. Indicate on
part that this service bulletin has been accomplished.
R Part number after rework.
S Superseding or equivalent part number.
X Reworked part and superseding part are functionally and physically
equivalent but not identical.
3. ACCOMPLISHMENT INSTRUCTIONS
A. Job Set-Up
(1) Placard and select all aircraft electrical power to OFF. Obey all relevant
WARNINGS and CAUTIONS (refer to AMM TASK’S 24-00-00-861-802 and
24-00-00-910-801).
(2) Make sure that lock pins are installed thru each main gear and main gear door
mechanism.
(3) Make sure the nose gear ground lock is engaged.
(4) Make sure that hydraulic pressure in the No.1, 2 and 3 systems are depleted
(refer to AMM TASK’s 29-00-00-863-802 and 29-00-00-863-804).
(5) Install a warning sign on the external hydraulic connection.
(6) Position workstands as required to gain access to the AC contactor box in the
left nacelle. Make sure that the work stands are electrically grounded.
B. Procedure
(1) Remove AC contactor box (p/n 1152130-6 Series 4 or -6 Series 1 or -6 Series 2)
to agree with applicable instructions in AMM TASK 24-21-16-000-801. Make
sure to put a cap on all open connectors.
NOTE: Bombardier Inc. recommends that inspection and rework be
accomplished “off-wing” (on a bench).

### Page 9

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
Page 7 of 42
26 Apr 2011
LS
Revision ‘A’ 14 Sep 2011
(2) After the cover is removed from the AC contactor box carefully clean the wiring
and related parts using isopropyl alcohol solvent and a clean white wiper cloth
(lint-free), (refer to applicable instructions in AMM TASK 20-30-26-910-802).
(3) Inspect, rework and if necessary replace any damaged wiring and related parts
within the AC contactor box to agree with all of the details provided in attached
VSB 1152130-24-126.
(4) Make sure that the reworked AC contactor box is re-identified (see Table 1
below) to agree with the instructions provided in VSB 1152130-24-126 section 2.
Material Information para E (refer to applicable instructions in AMM TASK
20-00-01-910-801, TASK 20-00-16-400-801 and TASK 20-00-16-390-801).
Table 1
Pre-Mod Identification Post-Mod Identification
1152130-6 Series 4 1152130-6 Series 5
1152130-6 Series 1 1152130-6 Series 6
1152130-6 Series 2 1152130-6 Series 7
(5) Install AC contactor box P/N 1152130-6 Series 5 or -6 Series 6 or -6 Series 7 to
agree with applicable instructions in AMM TASK 24-21-16-400-801.
(6) Do a “return to service” check of the AC contactor box P/N 1152130-6 Series 5
or -6 Series 6 or -6 Series 7 (refer to applicable instructions in AMM TASK
24-21-16-550-801).
C. Close Out
(1) Remove all tools and equipment from the work area.
(2) On completion of this service bulletin, make the following entry in the
appropriate logbooks: “Service Bulletin 84-24-47 {AC Contactor Box P/N
1152130-6 - Left Nacelle - Potential Wire Chafing - Special Inspection /
Rectification} Accomplished.

### Page 10

SERVICE BULLETIN 84-24-47
S.B. 84-24-47
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26 Apr 2011
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Revision ‘A’ 14 Sep 2011
This Page Intentionally Blank

### Page 11 (OCR)

SERVICE BULLETIN 84-24-47
Honeywell
Honeywell ASCa Inc.
3333 Unity Drive
Mississauga, ON L5L 3S6
Canada
CAGE: 07217
Telephone: (800) 601-3099 (Toll Free U.S.A./Canada)
Telephone: (602) 365-3099 (International Direct)
Web site: http://portal.honeywell.com/wps/portal/aero
SERVICE BULLETIN
ELECTRICAL POWER - AC CONTACTOR BOX - Modification of DHC-8 Model 400, Left AC Contacto
Box, No Galley P/N 1152130-6 Series 4, -6 Series 1 and -6 Series 2 to P/N 1152130-6 Series 5, -6 Series
and -6 Series 7, respectively
Legal Notice
Export Control
This document contains technical data and is subject to Canadian and U.S. export regulations. If these
commodities, technology, or software were exported from Canada, no export permit is required. If these
commodities, technology, or software were exported from the United States, they are in accordance with the
export administration regulations. Diversion contrary to Canadian or U.S. law is prohibited.
ECCN: 9E991, NLR Eligible.
Initial Release, 07 Apr 2011  1152130-24-126
Revision 1, 31 Aug 2011  Page 1 of 34
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 9 of 42
LS

### Page 12 (OCR)

SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
Propriety Information
Honeywell - Confidential
THIS COPYRIGHTED WORK AND ALL INFORMATION ARE THE PROPERTY OF HONEYWELL ASCA INC.,
CONTAIN TRADE SECRETS AND MAY NOT, IN WHOLE OR IN PART, BE USED, DUPLICATED, OR
DISCLOSED FOR ANY PURPOSE WITHOUT PRIOR WRITTEN PERMISSION OF HONEYWELL ASCA INC.
ALL RIGHTS RESERVED.
Honeywell Materials License Agreement
The documents and information contained herein ("the Materials") are the proprietary data of Honeywell
ASCa Inc. and Honeywell Intellectual Properties Inc (collectively "Honeywell"). These Materials are
provided for the exclusive use of Honeywell Service Centers; Honeywell-authorized repair facilities;
operators of Honeywell aerospace products subject to an applicable product support agreement, their
wholly owned-subsidiaries or a formally designated third party service provider thereunder; and direct
recipients of Materials from Honeywell's Aerospace Technical Publication Distribution. The terms and
conditions of this License Agreement govern your use of these Materials, except to the extent that any
terms and conditions of another applicable agreement with Honeywell regarding the operation,
maintenance, or repair of Honeywell aerospace products conflict with the terms and conditions of this
License Agreement, in which case the terms and conditions of the other agreement will govern. However,
this License Agreement will govern in the event of a conflict between its terms and conditions and those
of a purchase order or acknowledgement.
1. License Grant - If you are a party to an applicable product support agreement, a Honeywell Service Center agreement, or
an authorized repair facility agreement, Honeywell hereby grants you a limited, non-exclusive license to use these Materials
to operate, maintain, or repair Honeywell aerospace products only in accordance with that agreement.
If you are a direct recipient of these Materials from Honeywell's Aerospace Technical Publication Distribution and are not a
party to an agreement related to the operation, maintenance or repair of Honeywell aerospace products, Honeywell hereby
grants you a limited, non-exclusive license to use these Materials to maintain or repair the subject Honeywell aerospace
products only at the facility to which these Materials have been shipped ("the Licensed Facility"). Transfer of the Materials to
another facility owned by you is permitted only if the original Licensed Facility retains no copies of the Materials and you
provide prior written notice to Honeywell.
2. Rights In Materials - Honeywell retains all rights in these Materials and in any copies thereof that are not expressly
granted to you, including all rights in patents, copyrights, trademarks, and trade secrets. No license to use any Honeywell
trademarks or patents is granted under this License Agreement.
3. Confidentiality - You acknowledge that these Materials contain information that is confidential and proprietary to
Honeywell. You agree to take all reasonable efforts to maintain the confidentiality of these Materials.
4. Assignment And Transfer - This License Agreement may be assigned to a formally designated service designee or
transferred to a subsequent owner or operator of an aircraft containing the subject Honeywell aerospace products. However,
the recipient of any such assignment or transfer must assume all of your obligations under this License Agreement. No
assignment or transfer shall relieve any party of any obligation that such party then has hereunder.
5. Copies of Materials - Unless you have the express written permission of Honeywell, you may not make or permit making
of copies of the Materials. Notwithstanding the foregoing, you may make copies of only portions of the Material for your
internal use. You agree to return the Materials and any copies thereof to Honeywell upon the request of Honeywell.
1152130-24-126
Revision 1, 31 Aug 2011  Page 2
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 10 of 42
LS

### Page 13 (OCR)

SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
6. Term - This License Agreement is effective until terminated as set forth herein. This License Agreement will terminate
immediately, without notice from Honeywell, if you fail to comply with any provision of this License Agreement or will terminate
simultaneously with the termination or expiration of your applicable product support agreement, authorized repair facility
agreement, or your formal designation as a third party service provider. Upon termination of this License Agreement, you will
return these Materials to Honeywell without retaining any copies and will have one of your authorized officers certify that all
Materials have been returned with no copies retained.
7. Remedies - Honeywell reserves the right to pursue all available remedies and damages resulting from a breach of this
License Agreement.
8. Limitation of Liability - Honeywell does not make any representation regarding the use or sufficiency of the Materials.
THERE ARE NO OTHER WARRANTIES, WHETHER WRITTEN OR ORAL, EXPRESS, IMPLIED OR STATUTORY,
INCLUDING, BUT NOT LIMITED TO, (i) WARRANTIES ARISIN  ›M COURSE OF PERFORMANCE, DEALING,
USAGE, OR TRADE, WHICH ARE HEREBY EXPRESSI  IMED, OR (ii) WARRANTIES AGAINST INFRINGEMENT
OF INTELLECTUAL PROPERTY RIGHTS Of THIRD I  N IF HONEYWELL HAS BEEN ADVISED OF ANY
SUCH INFRINGEMENT. IN NO EVENT WILL HONE  BE  _E FOR ANY INCIDENTAL DAMAGES,
CONSEQUENTIAL DAMAGES, SPECIAL DAMAGES,  WAGES, LOSS OF PROFITS, LOSS OF REVENUES,
OR LOSS OF USE, EVEN IF INFORMED OF THE POSS  SUCH DAMAGES. TO THE EXTENT PERMITTED BY
APPLICABLE LAW, THESE LIMITATIONS AND EXCLUSIONS WILL  APPLY REGARDLESS OF WHETHER LIABILITY
ARISES FROM BREACH OF CONTRACT, WARRA  TORT (INC  UDING BUT NOT LIMITED TO NEGLIGENCE), BY
OPERATION OF LAW, OR OTHERWISE.
9. Controlling Law - This License shall be governed and construed in accordance with the laws of the State of New York
without regard to the conflicts of laws provisions thereof. This license sets forth the entire agreement between you and
Honeywell and may only be modified by a writing duly executed by the duly authorized representatives of the parties.
1152130-24-126
Revision 1, 31 Aug 2011  Page 3
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 11 of 42
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### Page 14 (OCR)

SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
Safety Advisory
WARNING:  BEFORE THE MATERIALS CALLED OUT IN THIS PUBLICATION ARE USED, KNOW THE
HANDLING, STORAGE AND DISPOSAL PRECAUTIONS RECOMMENDED BY THE
MANUFACTURER OR SUPPLIER. FAILURE TO OBEY THE MANUFACTURERS' OR
SUPPLIERS' RECOMMENDATIONS CAN RESULT IN PERSONAL INJURY OR DISEASE.
This publication describes physical and chemical processes which can make it necessary to use chemicals,
solvents, paints and other commercially available materials. The user of this publication must get the Material
Safety Data Sheets (OSHA Form 20 or equivalent) from the manufacturers or suppliers of the materials to be
used. The user must know the manufacturer/supplier data and obey the procedures, recommendations, warnings
and cautions set forth for the safe use, handling, storage and disposal of the materials.
Warranty/Liability Advisory
WARNING:  HONEYWELL ASSUMES NO RESPONSIBILITY FOR ANY HONEYWELL EQUIPMENT
WHICH IS NOT MAINTAINED AND/OR REPAIRED IN ACCORDANCE WITH HONEYWELL'S
PUBLISHED INSTRUCTIONS AND/OR HONEYWELL'S FAA/SFAR 36 REPAIR
AUTHORIZATION. NEITHER DOES HONEYWELL ASSUME RESPONSIBILITY FOR
SPECIAL TOOLS AND TEST EQUIPMENT FABRICATED BY COMPANIES OTHER THAN
HONEYWELL.
INCORRECTLY REPAIRED COMPONENTS CAN AFFECT AIRWORTHINESS OR
DECREASE THE LIFE OF THE COMPONENTS. INCORRECTLY FABRICATED SPECIAL
TOOLING OR TEST EQUIPMENT CAN RESULT IN DAMAGE TO THE PRODUCT
COMPONENTS OR GIVE UNSATISFACTORY RESULTS.
Copyright - Notice
Copyright 2011 Honeywell ASCa Inc. All rights reserved.
Honeywell is a registered trademark of Honeywell ASCa Inc.
All other marks are owned by their respective companies.
1152130-24-126
Revision 1, 31 Aug 2011  Page 4
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 12 of 42
ILS

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SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
Transmittal Information
Summary
This Service Bulletin is to address Bombardier DHC-8 Model 400, Electrical Power, Left AC Contactor Box
(LACCB), No Galley P/N 1152130-6 Series 4, -6 Series 1 and -6 Series 2 which may experience wire chafing and
will be re-identified as 1152130-6 Series 5, -6 Series 6 and -6 Series 7 upon incorporation of this Service Bulletin
this new configuration improves wire protection using conduit sleeves
NOTE: Left AC Contactor Box is herein referred to as the LACCB.
Revision History
P/N 1152130-6 Series 1 and -6 Series 2 added and will be re-identified to 1152130-6 Series 6 and -6
Series 7, respectively.
Alterative re-identification method added.
Revision history of the Service Bulletin 1152130-24-126 is summarized in table below.
Service Bulletin Revisions
Revision  Date of Release
Initial Release  07 Apr 2011
Revision 1  31 Aug 2011
1152130-24-126
Revision 1, 31 Aug 2011  Page 5
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 13 of 42
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SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
1. Planning Information
A. Effectivity
(1)  This Service Bulletin is applicable to Bombardier DHC-8 Model 400, Electrical Power, Left
AC Contactor Box (LACCB), No Galley, P/N 1152130-6 Series 4, -6 Series 1 and -6 Series
B. Concurrent Requirements
(1)  Not applicable.
c.  Reason
(1)  LACCB may experience wire chafing against edges of components and enclosure walls.
Improvements shall be incorporated to protect wires from these chafing sources.
(2)  Upon incorporation of this Service Bulletin, the LACCB will be re-identified to PN 1152130-6
Series 5, -6 Series 6 and -6 Series 7, respectively. See Table 3 for details.
D.  Description
(1)  This Service Bulletin gives instructions to rework the LACCB.
NOTE: Appendix A contains a photo guide to allow a visual inspection to be performed prior
to performing the rework described within this Service Bulletin.
(2)  Upon first return to Honeywell or on aircraft repairs, conduit sleeving will be installed in the
LACCB to secure and protect wires from wire chafing against edges of components and
enclosure walls.
(3)  Once the rework is complete, the LACCB will be re-identified to indicate incorporation of this
Service Bulletin.
(4)  Proper incorporation of this Service Bulletin per the instructions herein on aircraft will not
affect the unit's warranty status.
E.  Compliance
(1)  The rework described within this Service Bulletin is not mandatory, however operators are
encouraged to incorporate the rework on wing or locally per the Service Bulletin at their
earliest convenience.
F.  Approval
(1)  The technical content of this Service Bulletin has been reviewed and accepted by
Bombardier Aerospace.
1152130-24-126
Revision 1, 31 Aug 2011  Page 6
© Honeywell ASCa Inc. Do not copy without express permission of Honeywell.
26 Apr 2011  S.B. 84-24-47
Revision 'A' 14 Sep 2011  Page 14 of 42
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SERVICE BULLETIN 84-24-47
Honeywell
SERVICE BULLETIN
1152130
G. Manpower
(1)  It is estimated that 1.5 man-hours will be required to modify the LACCB.
NOTE: The man-hours estimate does not include the time to access or remove the unit
from the aircraft. Honeywell will not reimburse the costs involved with removal and
installation of the LACCB or operational checks.
H. Weight and Balance
(1) Not affected.
Electrical Load Data
(1)  Not affected.
J. Software Accomplishment Summary
(1)  Not applicable.
K. References
(1) Honeywell ASCa Inc. Component Maintenance Manual (CMM) 24-24-06.
(2) Bombardier Aerospace - DHC-8 Model 400 Aircraft Maintenance Manual.
L. Other Publications Affected
(1)  Honeywell Component Maintenance Manual, 24-24-06.
M. Interchangeability or Intermixability of Parts
(1)  Please refer to Bombardier DHC8-400 Aircraft Illustrated Parts Catalogue for aircraft level
interchangeability.
(2)  This Service Bulletin does not have an effect on interchangeability or intermixability at the
detail component level.
1152130-24-126
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
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2. Material Information
A.  Material - Price and Availability
(1)  No modification kit is available for this Service Bulletin.
(2)  The parts necessary for this Service Bulletin are given in Table 1 and 2 of Paragraph 2.C. of
this Service Bulletin.
(3)  Ordering Identification Labels
Refer to Paragraph 3.F.(1). (b) when ordering identification labels.
(4)  Reimbursement will be given for this modification within 24 months after the initial release
date of this Service Bulletin.
The maximum labor hours and material cost that will be reimbursed by Honeywell to do this
modification are given below. Reimbursement will not be more than Honeywell's applicable
reimbursement labor rate or as specified in the agreement or contract.
1.5 hours for the labor to do the modification
• Honeywell Operator Price for parts listed on Table 1. Operator Purchased Material will be
reimbursed at the time of warranty claim.
Warranty claims should be submitted to AerospaceWarranty@honeywell.com.
The warranty claim must include the information that follows:
• Service Bulletin number, part number, serial number, Service Bulletin incorporation date
and Honeywell Sales Order number for the modification parts.
(5)  The LACCB will be modified at no charge to the airlines upon first return to Honeywell for a
period of 24 months after the release of this Service Bulletin.
(G)  For Spare Parts and Repair Administration information, contact (FSCM/CAGE 07217):
Honeywell ASCa Inc
Customer & Product Support, Customer Support Operations
333 Unity Drive
Mississauga, Ontario
Canada L5L 3S6
Phone: (905) 607-0300
Fax: (905) 608-6254
Email: crc-toronto@honeywell.com (Spares)
Email: crc-trt@honeywell.com (Repairs)
B. Industry Support Information
(1)  Not applicable.
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C. Material Necessary for Each Component
(1)  Refer to Table 1 for material to be purchased.
NOTE: The illustrated parts catalogs and spare parts bulletins dated later than the original
issue date of this service bulletin can introduce different parts. Refer to these
documents before you order parts.
NOTE: The parts usually discarded when you access the area, referred to in this service
bulletin, are not included.
Table 1. Operator-Purchased Material
Keyword/ Nomenclature  Part Number  Qty
Identification Label  CS576-11 (V07217)  1
Conduit Protective Sleeve  EN6049-007-13-5 (VI9005)  12 Inches
Cable Tie Strap  1592044-1 (V07217)
NOTE: 1 The Identification Label must be marked with the PN 1152130-6 Series X, in
accordance with Table 3. Please see Paragraph 3.F.(1) (b) for purchasing
instructions.
(2)  The tooling and consumable materials to be supplied by the operator for use in the
modification of the unit are given in Table 2.
Table 2. Tooling and Consumable Materials
Keyword/ Nomenclature  Manufacturer
Metal Stamp Tool  Commercially Available
Panduit Tool #GS2B  Commercially Available
Electrical Tape (Teflon) A-A-59474-TYPE1C4  Commercially Available
Red Varnish GLPT  CEMS1030 (V07217)
NOTE: Equivalent substitutes may be used.
D. Material Necessary for Each Spare
(1)  The parts necessary to do this Service Bulletin for each spare LACCB are the same as for
the in-service LACCB. Refer to Table 1 in Paragraph 2.C. for parts.
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(2)  The tooling and consumable materials necessary to do this service bulletin for each spare
LACCB are the same as for the in-service LACCB. Refer to Table 2 in Paragraph 2.C. for
tooling and consumable materials.
E. Re-identified Parts
(1) The Identification Plate will be replaced or marked to track the accomplishment of this
Service Bulletin. Refer to Paragraph 3.F.
(2) Refer to Table 3 for re-identifying the LACCB.
Table 3. Re-Identification
Pre-Mod Identification  Post-Mod Identification
1152130-6 Series 4  1152130-6 Series 5
1152130-6 Series 1  1152130-6 Series 6
1152130-6 Series 2  1152130-6 Series 7
F.  Tooling
(1)  Refer to the Special Tools, Fixtures, and Equipment section in Honeywell Component
Maintenance Manual, CMM 24-24-06, for the special tools necessary to incorporate this
Service Bulletin.
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
1152130
3. Accomplishment Instructions
A.  General Information
WARNING BEFORE YOU USE A MATERIAL, REFER TO THE MANUFACTURERS
MATERIAL SAFETY DATA SHEETS. SOME MATERIALS CAN BE
DANGEROUS.
CAUTION: DO NOT USE MATERIALS THAT ARE NOT EQUIVALENT TO
HONEYWELL-SPECIFIED MATERIALS. MATERIALS THAT ARE NOT
EQUIVALENT CAN CAUSE DAMAGE TO THE EQUIPMENT AND CAN
MAKE THE WARRANTY NOT APPLICABLE.
CAUTION: DO NOT DROP OR HIT THE UNIT DURING THESE PROCEDURES.
THIS UNIT CONTAINS ASSEMBLIES THAT CAN BE DAMAGED FROM
INCORRECT USE.
CAUTION: TO PREVENT DAMAGE TO MECHANICAL COMPONENTS, DO THESE
PROCEDURES IN A CLEAN ENVIRONMENT.
(1)  Obey the precautions.
(2)  The manual given in Paragraph 1.K. of this service bulletin, CMM 24-24-06 contains the
disassembly, cleaning, check, assembly, and test instructions. This manual must be used to
complete this Service Bulletin.
(3)  Apply Red Varnish GLPT (P/N CEMS1030) to all torqued fasteners.
NOTE: Fasteners shall be torque striped immediately after torquing and the stripe shall
extend from the center of the fastener to the adjacent substrate.
(4)  Refer to the CMM 24-24-06; Test and Fault Isolation section indicated on page 1001 to do a
complete functional test of the LACCB. The LACCB must pass the test after being modified.
Refer to Paragraph 3. G. (2) for alternate means of testing the LACCB.
B. Visual Inspection of the LACCB
(1)  Operators are to perform a visual inspection on the LACCB, using the photo guide provided
in Appendix A, prior to performing the rework described within this Service Bulletin.
(2)  Wiring cables are to be inspected for chafing, damage, and insulation damage.
(3)  Wires and cables are to be positioned or protected to avoid contact with rough or irregular
surfaces, sharp edges, and to avoid damage to conductors or adjacent parts. There are no
minimum clearance requirements
NOTE: Appendix A provides visual guidance on how the wiring harnesses and cables
should be positioned prior to performing the rework described within this Service
Bulletin.
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NOTE: Appendix A provides visual guidance where electrical (Teflon) tape (P/N A-A-59474-
TYPE1C4) should be present.
NOTE: Appendix A provides visual guidance where cable tie straps should be present.
(4)  Wires and cables are to be re-positioned if required per Appendix A.
NOTE: If the fasteners were loosened, then they shall be torque striped immediately after
torquing and the stripe shall extend from the center of the fastener to the adjacent
substrate.
(5)  If damaged, Teflon tape is to be replaced or re-applied per locations shown in Appendix A.
NOTE: If the fasteners were loosened, then they shall be torque striped immediately after
torquing and the stripe shall extend from the center of the fastener to the adjacent
substrate.
(6)  Cable tie straps are to be replaced if missing.
NOTE: Cable tie straps are to have a maximum spacing of 2 inches between installed cable
tie straps.
(7)  Damaged wires are to be replaced per CMM 24-24-06.
c.  Disassembly of the LACCB
(1)  Disassemble the LACCB as necessary to remove the cover assembly (30, 35, IPL Figure 1).
Refer to Figure 1 and instructions in the DISASSEMBLY section of CMM 24-24-06.
D.  Modification of the LACCB
NOTE: Install cable tie straps using Panduit Tool listed in Table 2 of Paragraph 2.C. Orientate the
cable tie strap head away from other wires and the cover if possible.
(1)  Remove cable tie straps from wire bundle as shown in Figure 2.
NOTE: The wire harness must be prepared before installing the conduit sleeve.
(2)  Wrap conduit sleeve (P/N EN6049-007-13-5) around wire cables and bundles at locations
shown in Figure 3.
NOTE: Conduit sleeves must be prepared prior to installation. Small cuts into the edge of
the sleeve is required to allow wire cable breakouts from the wire bundle. See
Figure 3: VIEW A and VIEW B.
(3)  Secure conduit sleeves with cable tie straps (P/N 1592044-1) at both ends and in between
each wire cable breakout from the wire bundle as shown in Figure 3 (total 6 locations).
NOTE: Insure all wires are covered by conduit sleeving per Figure 3: VIEW C.
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E. Assembly of the LACCB
(1)  Re-install the cover assembly (30, 35, IPL Figure 1) for the LACCB. Refer to Figure 1 and
instructions in the ASSEMBLY section of CMM 24-24-06.
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F.  Re-Identification of the Left AC Contactor Box
(1)  Re-identify the LACCB to PN 1152130-6 Series 5, -6 Series 6 or -6 Series 7 as follows:
NOTE: Refer to Figure 4 when performing the following procedure.
(a)  For identification plate (10, IPL Figure 1), do the following instructions:
1 If metal stamps are available, use a metal stamp to cross out the series number
within the part number box and stamp the number 5, 6 or 7 in the part number
box of the old ID plate.
2 If metal stamps are not available to stamp the old ID plate or if there is no room
in the part number box, replace the old ID plate with a new Identification Plate
listed in Table 1 of Paragraph 2.C.
NOTE: If the LACCB identification label is the laser etched type and you are unable to re-
identify the unit, please contact Honeywell Customer and Product Support at the
number listed in Paragraph 2.A. (6).
(b)  For identification label (10A, IPL Figure 1), do the following instructions:
1 For laser etched type identification labels, make sure to forward a digital
photograph of the identification label for part number and serial number
traceability. Price of new labels are available in Paragraph 2.A.(6).
2 Send a price and delivery request to Aftermarket Administration (fax: 905-608-
6254) Make sure to reference this Service Bulletin number and provide the
quantity of Identification Labels (P/N CS576-1) required. Make sure to include
the Part Number, Serial Number, and Digital Photo for each LACCB that
requires a new label.
3 Remove the old identification label (10A, IPL Figure 1). Refer to instructions in
the DISASSEMBLY section of CMM 24-24-06.
4 Install the new identification label (10A, IPL Figure 1). Refer to instructions in
the ASSEMBLY section of CMM 24-24-06. Make sure the new identification
label include the same Part Number and Serial Number as the old identification
label.
(c)  Alternatively re-identify using an indelible means of marking:
1 On identification plate (10, IPL Figure 1), or identification label (P/N CS576-1),
change the existing series number in accordance with Table 3 using an indelible
means of marking.
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NOTE: If you are unable to re-identify the unit using an indelible means of
marking, please contact Honeywell Customer and Product Support at
the number listed in Para 2.A.(6)
G. Testing of the LACCB
(1)  Do a test of the LACCB, PN 1152130-6 Series 5, -6 Series 6 or -6 Series 7. Refer to the
TESTING AND FAULT ISOLATION section of CMM 24-24-06.
(2) In place of the CMM test procedure, operators may also refer to the Bombardier cover
Service Bulletin to determine an alternate post modification test procedure and the
requirement to allow the alternate test procedure to be performed.
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®
30
35
NOTE:  REFER TO CMM 24-24-06 ILLUSTRATED PARTS LIST, FIGURE 1.
FIGURE 1: LEFT AC CONTACTOR BOX COVER ASSEMBLY
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
1152130
REMOVE CABLE TIE STRAPS
LACCB P/N 1152130-6 SERIES 4, -6 SERIES 1 OR -6 SERIES 2 PRE-
MODIFICATION
LACCB P/N 1152130-6 SERIES 4, -6 SERIES 1 OR -6 SERIES 2 WITH
REMOVED CABLE STRAPS
FIGURE 2: REMOVAL OF EXISTING CABLE TIE STRAPS
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
1152130
VIEW A  VIEW B
WIRES NOT COVERED BY CONDUIT SLEEVING
NOTE:  CONDUIT SLEEVE NEEDS TO BE CUT IN
FOUR LOCATIONS TO ALLOW WIRE
BUNDLE BREAKOUT TO CONNECTORS.
INCORRECT
CORRECT
VIEW C
FIGURE 3: INSTALLATION OF CONDUIT SLEEVE
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SERVICE BULLETIN 84-24-47
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10A
NOTE  REFER TO CMM 24-24-06
ILLUSTRATED PARTS LIST,
FIGURE 1
• 10A
LEFT AC CONTACTOR BOX, NO GALLEY
LEFT AC CONTACTOR BOX, NO GALLEY
PART NO. 1152130-6 SER 5  CAGE 07217
MFR 07217  DMF MMYYYY
SERNO  xxxx-xxxx  SER 1152130-XXXXX
VENDOR PN  BSC 1363  PNR 1152130-6  SERIES 5
CUST PN 8SC1363
AlliedSignal ALLIED  ,. COAD, 170 Honeywell  •
METAL STAMP (EXAMPLE)  LASER ETCHED (EXAMPLE)
FIGURE 4: RE-IDENTIFICATION OF LACCB
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SERVICE BULLETIN 84-24-47
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4. Appendix
A. Appendix A, Pre-Modification LACCB Inspection Photo Guide
(1)  A photo guide for the LACCB, No Galley has been created to provide operators with a visual
aid that can be used inspect the LACCB before performing the rework described within this
Service Bulletin. Refer to Figures 5 thru 19.
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B  C  D
2
FIGURE 5: LACCB PHOTO GUIDE (GRID LOCATIONS)
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¡60
FIGURE 6: PRE-MODIFICATION LACCB PHOTO (GRID LOCATIONS A6 - B4)
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FIGURE 7: LACCB PHOTO GUIDE (GRID LOCATIONS A3 - B1)
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
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• PROP DEFICE
C 07217-1034080-
AVE CO PANEL
217-10320
17-1032371-2
FIGURE 8: LACCB PHOTO GUIDE (GRID LOCATIONS C4 - D1)
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SERVICE BULLETIN 84-24-47
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POR C POR B PCR
FIGURE 9: LACCB PHOTO GUIDE (GRID LOCATIONS C6 - D4)
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SERVICE BULLETIN 84-24-47
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INSPECTION GAP BETWEEN WIRE AND HEX STANDOFF
КЗХА-Đ3
INSPECTION GAP BETWEEN WIRES AND HOLES (3 LOCATIONS)
FIGURE 10: LACCB PHOTO GUIDE INSPECTION (GRID LOCATIONS B5)
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
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ZODIAC  SPDT
AEROSPACE  CONTACTOR 100A
P/N
0939
AMOs
INSPECTION GAP BETWEEN WIRES AND CORNER
FIGURE 11: LACCB PHOTO GUIDE INSPECTION (GRID LOCATIONS A3 - A2)
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SERVICE BULLETIN 84-24-47
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INSPECTION GAP BETWEEN WIRES AND STUDS
FIGURE 12: LACC PHOTO GUIDE INSPECTION (GRID LOCATIONS C5)
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SERVICE BULLETIN 84-24-47
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INSPECTION GAP BETWEEN
WIRES AND COILS
(3 LOCATIONS)
INSPECTION GAP BETWEEN
WIRES AND HARDWARE
(3 LOCATIONS)
FIGURE 13: LACCB PHOTO GUIDE INSPECTION (GRID LOCATIONS C3 - D2)
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SERVICE BULLETIN 84-24-47
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1A4
INSPECTION GAP BETWEEN WIRES AND HARDWARE
FIGURE 14: LACC PHOTO GUIDE INSPECTION (GRID LOCATIONS C3)
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INSTALLED TIE WRAPS IN 2 PLACES
INSPECTION GAP BETWEEN WIRES AND HEX STANDOFF
FIGURE 15: LACC PHOTO GUIDE INSPECTION (GRID LOCATIONS C5)
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INSPECTION GAP BETWEEN WIRES AND RIVETS (3 LOCATIONS)
FIGURE 16: LACCB PHOTO GUIDE INSPECTION (GRID LOCATIONS D5)
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INSPECTION GAP BETWEEN WIRES AND CONTACTOR EDGE
FIGURE 17: LACCB PHOTO GUIDE INSPECTION (GRID LOCATIONS B4)
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SERVICE BULLETIN 84-24-47
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SERVICE BULLETIN
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WARNING
15/2001
J9
FIGURE 18: LACCB PHOTO GUIDE (FRONT PANEL VIEW)
FIGURE 19: LACCB PHOTO GUIDE (SIDE PANEL VIEW)
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Jan 2009
SERVICE BULLETIN (SB) - - - RECORD OF INCORPORATION
- - - Q SERIES DASH 8 AIRCRAFT
To : CMDB Focal
Facsimile: (1) 416 375 4538
E- -mai l: cmdb.requests@aero.bombardier .com
From:
Company:
Phone: Extn:
Facsimile: Date:
E- -mai l:
The data that you provide below will help us record the incorporation of this ModSum
and the aircraft effectivity in the maintenance manual.
Operator: Service Bulletin: __________________ Revision: _________
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Aircraft Serial Number: Model Number: Date Bulletin Completed:
Fax this sheet to (1) 416 375 4538 or Email PDF to:
cmdb.requests@aero.bombardier.com

### Page 46

Feb 2009
SERVICE BULLETIN (SB) - - - COMMENT SHEET - - - Q SERIES DASH 8 AIRCRAFT
To : SB Focal (T oronto), Bombardier Aerospace Commercial Aircraft
Phone: (1) 416 375 4078 Facsimile: (1) 416 375 4538
E- -mai l: syed.rizvi@aero.bombardier .com
From:
Company:
Phone: Extn:
Facsimile: Date:
E- -mai l:
Select appropriate box(es) and add comments or suggestions you would like us to know
that may enhance the quality of our service bulletins.
Service Bulletin: Revision: ModSum:
1. PLANNING INFORMATION
V Effectivity V Reason V Description V Compliance
V Approval V Manpower V Material V Weight and Balance
V Electrical Load V T ooling V References V Publications Affected
2. MATERIAL INFORMATION
V Kit Content V Special T ools/Equipment V Parts to Modify Spares
V Consumables V Disposition of Existing Parts V Other
3. ACCOMPLISHMENT INSTRUCTIONS
V J o b S e t --- U p V Procedure V Close- - -Out V Te s t
V Illustration(s) V Other
4. COMMENTS, REMARKS, SUGGESTIONS
Fax this sheet to (1) 416 375 4538 or Email PDF to:
syed.rizvi@aero.bombardier.com

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