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Revision ‘B’ 12 Oct 2012 DHC-8 (DASH 8) SERVICE BULLETIN 84-26-12 Fire Protection - Fire Detection - Replacement of Fire/Overheat Detector P/N 10-1096 or 10-1096-01 or 10-1096-02 (Post SB 84-26-10A) with 10-1096-02 - Propeller Electronic Control - ModSum 4-113732 This page transmits Revision ‘B’ of Service Bulletin 84-26-12, pages 1 thru 12 dated: 12 Oct 2012.
This service bulletin is re-issued in its entirety for the reasons that follow:
-- the Effectivity section is revised to add aircraft serial numbers 4392 thru 4399 and Production cut-in at serial number 4400.
-- the References section is revised to convey the latest revision of the service bulletin and engineering documentation The Compliance recommendation in the previous issue of this service bulletin is not affected by this revision. No further rework to the aircraft is introduced by this revision.
Remove the previous issue of this Service Bulletin and replace with attached.
Previous issues of Service Bulletin 84-26-12:
Initial issue - Pages 1 thru 12 dated 12 Oct 2011 Revision ‘A’ - Pages 1 thru 12 dated 13 Dec 2011
No text on this page: it may be a figure. Open the PDF to see it.
D S.B. 84-26-12 Page 1 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR
SERVICE BULLETIN Customer Support ATA SYSTEM: 2621 NUMBER: 84-26-12
BOMBARDIER AEROSPACE REGIONAL AIRCRAFT CONSIDER THIS
SERVICE BULLETIN TO BE PARTICULARLY SIGNIFICANT AND
URGES OPERATORS TO PROMPTLY EVALUATE THE CONTENTS SUBJECT: Fire Protection - Fire Detection - Replacement of Fire/Overheat Detector P/N 10-1096 or 10-1096-01 or 10-1096-02 (Post SB 84-26-10A) with 10-1096-02 - Propeller Electronic Control - ModSum 4-113732
1. PLANNING INFORMATION NOTE: This service bulletin supercedes Service Bulletin 84-26-10.
A. Effectivity Aircraft Affected:
In-Service: DHC-8 Aircraft Models 401 and 402 Serial Numbers 4001 thru 4399.
Production: ModSum 4-113732 will be installed before delivery on applicable DHC-8 Aircraft at Serial Number 4400 and subsequent.
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.
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 2 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR Spares Affected:
Part Number Description 10-1096 or 10-1096-01 or 10-1096-02 (post SB 84-26-10A, with s/n that has all numeric characters) Fire/Overheat Detector B. Reason Kidde Aerospace and Defense has modifi ed the Fire/Overheat Detector (APD - Advance Pneumatic Detector) internal desig n to eliminate false fire indication after fire has been extinguished.
C. Description The procedures in this service bulletin give the instructions to do the tasks that follow:
- aircraft is put into standard configuration for maintenance
- aircraft electrical power is removed
- the nose landing gear lock is engaged
- the main landing gear lock pins are installed thru each main gear and main gear door mechanism
- existing Fire/Overheat Detector P/N 10-1096 or 10-1096-01 or 10-1096-02 (post SB 84-26-10A, with s/n that has all numeric characters) on both Propeller Electronic Control is replaced with P/N 1096-02 that has serial number of three alpha characters followed by four numeric characters
- an operational test of the nacelle fire detection system is done
- close out.
D. Compliance Bombardier Inc. recommends incorpora tion of ModSum 4-113732 at the earliest opportunity unless otherwise directed by the operator’s airworthiness authority.
Transport Canada Airworthiness Directive Pending.
E. Approval The technical content of this service bulletin has been approved under the
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 3 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR 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).
F. Manpower It will take an estimated 3.5 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 0.50 Procedure 2.00 Test / RTS 0.50 Close-Out 0.50 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 The part detailed in Paragraph 2.A. may be obtained from any Bombardier Aerospace Regional Aircraft authorized parts source. The price and availability will be quoted at the time of order.
Bombardier Aerospace Customer Accounts Services Team (Mail Stop N11-32) 123 Garratt Blvd.
Toronto Ontario Canada M3K-1Y5 Facsimile: (416) 375-3060 Telephone: (416) 375-3920 H. Tooling - Price and Availability None I. Weight and Balance None
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 4 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR J. Electrical Load Data Not affected K. Publications Affected Dash 8 Illustrated Parts Catalogue PSM 1-84-4....................
ModSums Manual PSM 1-84-12..................................
L. References Revision ‘B’ of this service bulletin was prepared to the engineering drawings and related data that follows:
ModSum 4-113732 Rev. ‘B’ ModSum 4K113732 Rev. ‘B’ PCA 42588 Revision 0 (for internal reference only) Transport Canada Airworthiness Directive Pending Kidde Aerospace Service Bulletin 10-1096-26-487 Rev 2 Dec 1/11
2. MATERIAL INFORMATION A. Parts Required Per Aircraft Quantity Per Aircraft Part Number Description Remarks 2 10-1096-02 Fire/Overheat Detector B. Parts Required to Modify Spares None C. Special Tools and Equipment Required None
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 5 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR 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 10-1096 or 10-1096-01 or 10-1096-02 (post SB 84-26-10A, with s/n that has all numeric characters) Fire/Overheat Detector 2 B SAL 10-1096-02 with s/n of three alpha and four numeric characters S 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 service bulletin.
DC Disposition DIS Discard Part.
MUI Multiple Usage Item: Return to stock if serviceable.
RWK 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.
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 6 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR
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) Set up work platforms or ladders as required to gain access to left and right engines. Make sure the work platforms or ladders are electrically grounded.
B. Procedure
(1) Remove existing left and right propeller electronic control advance pneumatic detector (Fire/Overheat Detector P/N 10-1096 or 10-1096-01 or 10-1096-02 with s/n that has all numeric characters). Re fer to Figure 1, Maintenance Manual Task 26-11-03-000-801 and enclosed Kidde Aerospace Service Bulletin 10-1096-26-487.
(2) Install on the left and right propeller electronic control advance pneumatic detector (Fire/Overheat Detector P/N 10-1096-02 that has serial number of three alpha characters followed by four numeric characters). Refer to Maintenance Manual Task 26-11-03-400-801 and enclosed Kidde Aerospace Service Bulletin 10-1096-26-487.
NOTE: Refer to enclosed Figures 1 & 2 for serial number reference.
(3) Do the operational test of the Nacelle Fire Detection System. Refer to Maintenance Manual Task 26-11-00-710-801.
C. Close Out
(1) Remove all tools and equipment from the work area.
(2) On incorporation of this ModSum, make an entry that conforms to local regulatory requirements in the applicable logbook(s). Enter component serial numbers if applicable. Enter this ModSum number only after complete and functional incorporation of all work defined in this service bulletin.
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 7 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR Figure 1 Serial Number Identification of Existing Detector (for reference only)
SERVICE BULLETIN 84-26-12 S.B. 84-26-12 Page 8 of 12 12 Oct 2011 Revision ‘B’ 12 Oct 2012 JR Figure 2 Serial Number Identification of New Detector (for reference only)
SERVICE BULLETIN 84-26-12 Kidde Aerospace & Defense
SERVICE BULLETIN
FIRE PROTECTION - FIRE DETECTION - REPLACEMENT OF FIRE/OVERHEAT DETECTORS, P/NS 10-1096, 10-1096-01, 10-1096-02 Transmittal Sheet This page transmits Revision 2 of the Service Bulletin dated Dec 1/11.
The purpose of the revision is instruct operators to return all removed detectors to Kidde Aerospace & Revision 1 dated Sep 26/11 clarified the numeric configuration of the detector serial numbers.
INFORMATION SUBJECT TO EXPORT CONTROL LAWS Export Control Castical Number 9SE991 F-50724 10-1096-26-487 Aug 12/11 Rev. 2 Dec 1/11 12 Oct 2011 S.B. 84-26-12 Revision 'B' 12 Oct 2012 Page 9 of 12 JR
SERVICE BULLETIN 84-26-12 Kidde Aerospace & Defense
SERVICE BULLETIN
FIRE PROTECTION - FIRE DETECTION - REPLACEMENT OF FIRE/OVERHEAT DETECTORS, P/NS 10-1096, 10-1096-01, 10-1096-02
1. PLANNING INFORMATION A. Effectivity
(1) Fire/overheat detector P/N 10-1096, 10-1096-01 or 10-1096-02, serial numbers beginning with "11" followed by four unique numbers, used on Bombardier Aerospace Dash 8 400 aircraft.
B. Reason
(1) The detector may not reset after exposure to the flame test of TSO-C11e.
C. Description
(1) This service bulletin provides the instructions to remove fire/overheat detector 10-1096, 10-1096-01 or 10-1096-02 and install new replacement fire/overheat detector, P/N 10-1096-02. The replacement detector serial numbers will consist of three alpha characters followed by four numeric characters.
D. Approval
(1) This service bulletin has been reviewed and accepted by Bombardier Aerospace.
E. Manpower
(1) Refer to Bombardier Cover Service Bulletin 84-26-12.
F. Material - Cost and Availability
(1) Refer to Bombardier Cover Service Bulletin 84-26-12.
G. Tooling
(1) No special tools are required.
H. Weight and Balance
(1) Not Affected.
I. Electrical Load Data
(1) Not Affected.
J. References
(1) Bombardier Aerospace Aircraft Maintenance Manual (AMM) PSM 1-84-2.
Aug 12/11 10-1096-26-487 Rev. 2 Dec 1/11 Page 1 of 2 12 Oct 2011 S.B. 84-26-12 Revision 'B' 12 Oct 2012 Page 10 of 12 JR