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FALCON 20 No 783-R1 JUNE 11, 2012
MANDATORY ATA 26-14
FIRE PROTECTION
PYROTECHNICAL CARTRIDGE INSPECTION
FALCON SERVICE BULLETIN Copyright © 2012 by Dassault Aviation All rights reserved. No part of this work may be reproduced or copied in any form or by any means without written permission of Dassault Aviation.
FIRE PROTECTION
PYROTECHNICAL CARTRIDGE INSPECTION Initial issuance December 08, 2011 List of effective pages :
1 to 6 Revision 1 June 11, 2012 List of effective pages :
1 to 7 List of modified pages :
1 REASON:- Service Bulletin rendered MANDATORY (Initial issuance of this Service Bulletin has not been released).
- Modification of the effectivity.
FALCON 20 F20-783 F20-26-14
FIRE PROTECTION
PYROTECHNICAL CARTRIDGE INSPECTION
1. PLANNING INFORMATION A. EFFECTIVITY This Service Bulletin is applicable to all FAN JET FALCON series and MYSTERE-FALCON 20-()5 aircraft which are fitted with cartridges which manufacturing references are older than those listed below:
PART NUMBER BATCH DATE 12-12-11707S1-4 45 05/12 12-12-11707S2-4 34 05/12 12-12-11707S3-4 45 05/12 B. REASON On in-service aircraft, following a specific check consisting in testing the pyrotechnical system resistance, the cartridges P/N 12-12-11707Sx-4 have been discovered prematurely unserviceable.
The cartridge visual inspection scheduled in chapter 5.20 does not permit to detect this failure. The cause of failure was isolated inside the cartridge by our initial technical investigation with the vendor (corrosion, signs of moisture).
The purpose of this Service Bulletin is to launch the resistance check procedure on the Falcon 20 fleet, to identify all deficient cartridges P/N 12-12-11707Sx-4 and to replace the defective ones.
C. DESCRIPTION The operation consists in:
• checking the cartridge references,
• checking the suspected pyrotechnical cartridge resistance of the engine/rear compartment and optional APU fire extinguishers (six or seven cartridges), NOTE: The check of the APU fire extinguisher cartridge is only applicable to APU fire extinguisher equipped with cartridge P/N 12-12-11707Sx-4.
• replacing the defective cartridge(s) with new one(s).
D. COMPLIANCE Mandatory:
• It is anticipated that this Service Bulletin will be rendered mandatory by an EASA Airworthiness Directive.
• As prescribed by the Airworthiness Authorities of the country of registration of the aircraft.
E. APPROVAL The technical content of this document is approved under the authority of DOA nr. EASA.21J.051.
FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 1 / 7 DASSAULT AVIATION Proprietary Data
F. LABOR Estimated labor-hours:
4 hours to test the pyrotechnical system resistance.
1/4 hour to replace a pyrotechnical cartridge.
NOTE: These labor-hours only concern the work described in this Service Bulletin and do not include other maintenance work which may be performed on this occasion.
G. MATERIAL - PRICE AND AVAILABILITY The modification kit may be obtained from either address listed below:
Western hemisphere: DASSAULT FALCON JET CORP.
SPARES DISTRIBUTION CENTER 200 RISER ROAD LITTLE FERRY, NJ 07643 U.S.A.
Telephone:
• CANADA and U.S.A.: 1-800-800-4036
• MEXICO: 001-800-800-4036
• Other countries: 1-201-541-4809 Fax:
• CANADA and U.S.A.: 1-800-800-4817
• MEXICO: 001-800-800-4817
• Other countries: 1-201-440-7021 Other continents: DASSAULT AVIATION Falcon Spares BOITE POSTALE N°101
AEROPORT DU BOURGET 93350 - LE BOURGET Cedex (FRANCE) Please contact your Dassault Aviation Account Representative Telephone: 33 (0)1.48.35.56.78 Fax: 33 (0)1.48.35.56.00 Price and availability on request.
H. TOOLING - PRICE AND AVAILABILITY Normal maintenance tooling.
WARNING: IT IS MANDATORY TO USE A SAFETY MILLI-OHMMETER (SAFE TEST CURRENT: 10 MILLIAMP. MAX.) TO PERFORM THIS CHECK, TO AVOID ANY RISK OF ACCIDENTAL DISCHARGE OF THE FIRE EXTINGUISHERS.
Safety milli-ohmmeter (safe test current: 10 mA max.)
FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 2 / 7 DASSAULT AVIATION Proprietary Data
I. WEIGHT AND BALANCE Change in weight: None.
Change in balance with respect to 25% MAC: None.
J. REFERENCES Aircraft Maintenance Manual:
• Chapter 20-00-0-2 “SUMMARY OF MANDATORY PRECAUTIONS TO BE TAKEN DURING AIRCRAFT MAINTENANCE OPERATIONS”
• Chapter 26-20-2-4 “REMOVAL OF PYROTECHNICAL CARTRIDGE FOR CHECK/ REPLACEMENT”
• Chapter 26-20-2-6 “PYROTECHNICAL CARTRIDGE RESISTANCE CHECK” FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 3 / 7 DASSAULT AVIATION Proprietary Data
2. ACCOMPLISHMENT INSTRUCTIONS A. PRELIMINARY STEPS WARNING: OPERATORS MUST BE AWARE THAT STC INSTALLATION(S) MAY HAVE BEEN PERFORMED ON THE “EXTINGUISHERS” SYSTEM. THEREFORE, ALL EQUIPMENT
INTERFERING WITH THE DASSAULT STANDARD DEFINITION MUST BE
DISCONNECTED FOR SAFETY REASONS, AND TO ENSURE INTEGRITY OF THE TESTS.
FOR ADDITIONAL INFORMATION, PLEASE CONTACT YOUR STC HOLDER.
WARNING: ALL THE ELECTRICAL POWER SUPPLIES ARE PROHIBITED WHEN CHECKING THE PYROTECHNICAL CARTRIDGES. IF ANY POWER SUPPLY REMAINS ON, THERE IS A RISK OF AN ACCIDENTAL DISCHARGE OF THE FIRE EXTINGUISHERS.
The aircraft must be in the maintenance configuration (refer to Aircraft Maintenance Manual, chapter 20-00-0-2).
B. PROCEDURE Check each cartridge references (refer to fig. 1):
• If the cartridge references are not older than those listed in paragraph 1.A., no further action is required.
• If the cartridges references are older than those listed in paragraph 1.A.:
WARNING: MAKE SURE THAT THE AIRCRAFT ENGINES AND THE REAR COMPARTMENT ARE CLEAR OF PERSONNEL BEFORE BEGINNING THE CHECKS.
WARNING: IT IS MANDATORY TO USE A SAFETY MILLI-OHMMETER (SAFE TEST CURRENT: 10 MILLIAMP. MAX.) TO PERFORM THIS CHECK, TO AVOID ANY RISK OF ACCIDENTAL DISCHARGE OF THE FIRE EXTINGUISHERS.
WARNING: THE ACCIDENTAL EXPLOSION OF PERCUSSION CARTRIDGES MAY CAUSE INJURIES TO PERSONNEL. FOR SAFE HANDLING, THE ELECTRICAL CONNECTING LUGS MUST BE PROTECTED WITH A SAFETY COVER.
Check resistance of each pyrotechnical cartridge (refer to Aircraft Maintenance Manual, chapter 26-20-2-6) and replace, as required, the defective one(s) (refer to Aircraft Maintenance Manual, chapter 26-20-2-4), in accordance with the table below:
Circuit to be tested Position of switch on fire panel (33W) RH fire extinguisher (36W) LH fire extinguisher (37W) APU extinguisher (35W) Replace if “FIRE Zone 1L” 1 Yellow cartridge R > 5 Ω 2 Yellow cartridge “FIRE Zone 1R” 1 Red cartridge 2 Red cartridge “FIRE APU” 1 Yellow cartridge FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 4 / 7 DASSAULT AVIATION Proprietary Data
Circuit to be tested Position of switch on fire panel (33W) RH fire extinguisher (36W) LH fire extinguisher (37W) APU extinguisher (35W) Replace if “FIRE Rear Comp” 1 Green cartridges R > 2.5 Ω Table 1: Testing cartridge resistance at battery box or at bus “A” C. RECORDING Record compliance with this Service Bulletin in the appropriate aircraft documents.
Fill out the card located at the end of the Service Bulletin and mail or fax it to Dassault Aviation or Dassault Falcon Jet, or fill out the electronic Service Bulletin reply form located in the “Service Bulletin" page on the Falcon portal.
FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 5 / 7 DASSAULT AVIATION Proprietary Data
3. MATERIAL INFORMATION A. PYROTECHNICAL CARTRIDGE TO BE REPLACED DEPENDING ON THE CHECK RESULTS P/N Q T Y
KEY WORD INSTRUCTIONS 12-12-11707S1-4 1 to 3 Pyrotechnical cartridge(Yellow) refer to paragraph 2.B for replacement conditions12-12-11707S2-4 1 to 2 Pyrotechnical cartridge (Red) 12-12-11707S3-4 2 Pyrotechnical cartridge(Green) FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 6 / 7 DASSAULT AVIATION Proprietary Data
Figure 1: CARTRIDGE REFERENCES
END OF DOCUMENT FALCON 20 F20-783 June 11, 2012 F20-26-14 Revision 1 Page 7 / 7
NO POSTAGE
NECESSARY
FROM IF MAILED IN THE
UNITED STATES
ZIP CODE
BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO. 3306 HACKENSACK, NJ 07602 POSTAGE WILL BE PAID BY ADDRESSEE:
DASSAULT FALCON JET CORP.
PO BOX 1946 SO HACKENSACK NJ 07606-9946 ATTENTION:
FIELD SERVICE DEPARTMENT
DASSAULT AVIATION 78, Quai Marcel Dassault Cedex 300 92552 SAINT-CLOUD Cedex FRANCE A l'attention de DSC
SERVICE BULLETINS COMPLIANCE FALCON 20 A/C S/N DASSAULT AVIATION Number ATA Number F20 783 F20 26 14
Coding: C complete compliance
T partial compliance
Performed by:
Remarks: Revision 1 Date: Signature:
SERVICE BULLETINS COMPLIANCE Would you be kind enough to inform us that this Service Bulletin is complied with:
- For "Western Hemisphere", mail upper card (No postage necessary if mailed in the U.S.A.) or fax to Dassault Falcon Jet: 1-201-541-4700.
- For "Other Continents", mail card herebelow or fax to Dassault Aviation: 33 (0)1.47.11.65.21.
On the occasion, if other Service Bulletins have been simultaneously complied with could you complete the blank spaces provided for this purpose.
APPLICATION DE BULLETINS DE SERVICE Lorsque vous aurez applique ce Bulletin de Service sur votre avion, veuillez avoir l'amabilite de nous en informer:
- Utiliser la carte reponse superieure pour continent americain (Dispensee de timbrage pour postage depuis les U.S.A.) ou le fax pour Dassault Falcon Jet : 1-201-541-4700.
- Ou la carte reponse inferieure pour autres continents ou le fax pour Dassault Aviation : 33 (0)1.47.11.65.21.
Eventuellement, si d'autres Bulletins de Service ont ete appliques simultanement, vous pouvez les mentionner dans les cases vierges prevues a cet effet.
APPLICATION DES BULLETINS DE SERVICE SERVICE BULLETINS COMPLIANCE FALCON 20 A/C S/N DASSAULT AVIATION Number Numero DASSAULT AVIATION ATA Number Numero ATA F20 783 F20 26 14
Coding: C complete complianceapplication totale
T partial complianceapplication partielle
Performed by:
Fait par:
Remarks: Revision 1 Date: Signature:
Remarques: Revision 1