# FALCON 900

No 429-R1
JULY 13, 2012



# ATA 25-32 EQUIPMENT/FURNISHINGS
PILOT AND COPILOT SEAT INSTALLATION

IMPROVEMENT 

# 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.



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### EQUIPMENT/FURNISHINGS
PILOT AND COPILOT SEAT INSTALLATION IMPROVEMENT

Initial issuance May 15, 2012 List of effective pages : 6

Revision 1 July 13, 2012 List of effective pages : 1 to 6 List of modified pages : 4 and 5 REASON: Modification of the kit and addition of Service Bulletin identification.

This revision is applicable to aircraft already modified per the initial issuance of this Service Bulletin. 

# FALCON 900 F900-429

F900-25-32

### EQUIPMENT/FURNISHINGS
PILOT AND COPILOT SEAT INSTALLATION IMPROVEMENT

1. PLANNING INFORMATION
A. EFFECTIVITY This Service bulletin is applicable to FALCON 900 aircraft with serial numbers 1 through 202 which have already performed their first "C" inspection and which are equipped with pilot seats P/N 132series. B. REASON A Falcon operator reported that during take-off at rotation phase, the copilot seat slid aft. Investigations showed that one locking spring fitted on a seat locking pin was broken and the other one weak. The purpose of this Service Bulletin is to replace the locking springs on both pilot and copilot seats and then, check the correct locking of the seats on all aircraft which have already performed their first "C" inspection. NOTE: The replacement of these springs and the check of the correct locking of the seats will be added in to next revision of the scheduled maintenance program, every "C" inspection.
C. DESCRIPTION The operation consists in: • replacing the locking pin springs of each seat, • verifiying the correct locking of the seat after improvement. D. COMPLIANCE If you choose to comply with this Service Bulletin, accomplishment should be performed at the first opportunity but no later than the next "A" inspection. E. APPROVAL The technical content of this document is approved under the authority of DOA nr. EASA.21J.051. F. LABOR Estimated labor-hours: 2 hours per seat. 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: 

# FALCON 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 1 / 6DASSAULT AVIATION Proprietary DataWestern 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. I. WEIGHT AND BALANCE Change in weight: None. Change in balance with respect to 25% MAC: None. J. REFERENCES Aircraft Maintenance Manual: • GENERAL MAINTENANCE AND SAFETY PRECAUTIONS (Refer to TASK 20-00-00-910-801 ) • REMOVAL / INSTALLATION OF THE PILOT SEATS (Refer to TASK 25-11-01-900-801 ) K. OTHER PUBLICATIONS AFFECTED The following publications will be revised at a later date to account for the changes introduced by this Service Bulletin: • Illustrated Parts Catalog. • Aircraft Maintenance Manual. • Chapter 5. 

# FALCON 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 2 / 6DASSAULT AVIATION Proprietary Data2. ACCOMPLISHMENT INSTRUCTIONS

A. PRELIMINARY STEPS (1) The aircraft must be in the maintenance configuration (Refer to TASK 20-00-00-910-801 ). (2) Set the LH pilot seat ( L2MG ) and the RH pilot seat ( R2MG ) to the high position, using the seat height control switches ( 3MG ). (3) Remove the pilot seats ( Refer to TASK 25-11-01-900-801 , paragraph "Removal of pilot or copilot seat" ). B. REMOVAL Refer to fig. 1 (1) Remove and discard the pin (1). (2) Remove the ring (2). (3) Remove the screw (3). (4) Remove the fork arm (4). (5) Remove the two screws (5). (6) Remove the plate (6). (7) Remove the locking pin (7). (8) Remove and discard the spring(8) from the locking pin (7). C. INSTALLATION Refer to fig. 1 (1) Install a new spring (8) on the locking pin (7). (2) Install the locking pin (7). (3) Install the plate (6) and the two screws (5). (4) Tighten the two screws (5). (5) Install the fork arm (4) and the screw (3). (6) Tighten the screw (3). (7) Install the ring (2). (8) Install a new pin (1). D. FINAL STEPS (1) Check the seat tracks and the corresponding attachment fittings for condition. CAUTION: DO NOT APPLY LUBRICANT OR GREASE ON THE SEAT TRACK. (2) Clean the seat tracks with a cloth dampened with cleaner to remove residue or dust, especially in the locking holes. (3) Install the pilot seats ( Refer to TASK 25-11-01-900-801 , paragraph "Installation of pilot or copilot seat" ). 

# FALCON 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 3 / 6DASSAULT AVIATION Proprietary Data(4) Set the LH pilot seat ( L2MG ) and the RH pilot seat ( R2MG ) to the mid position, using the seat height control switches ( 3MG ). (5) Perform an operational test of the pilot seats ( Refer to TASK 25-11-01-900-801 , paragraph "Operational test" ). (6) Set the pilot seats ( L2MG )/( R2MG ) in the full rear position. (7) Pull up the handle and push the pilot seats ( L2MG )/( R2MG ) forward. Make sure that the two locking pins (7-fig. 1) lock the seats in all longitudinal positions when you release the handle. (8) Release the handle and make sure that the two locking pins ( 7-fig. 1) lock the seats in the full forward position. (9) Pull up the handle and push the pilot seats ( L2MG )/( R2MG ) fully rearwards. (10) Release the handle and make sure that the two locking pins (7-fig. 1) lock the seats in the full rear position. (11) Identify Service Bulletin number on the labels, bond the labels to the pilot and copilot seats near the seat identification label and protect with overlay. E. 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 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 4 / 6DASSAULT AVIATION Proprietary Data3. MATERIAL INFORMATION

A. MODIFICATION KIT Kit P/N SBF900EX0446AR1
NEW P/N QTY KEY WORD FIG / ITEM F0442581 including: 2 Kit. Each kit contains: - 147100-19 2 - Spring Refer to (8-fig. 1) - G0725X12S250 2 - Pin Refer to (1-fig. 1) - 00-6414 1 - Label - Not referenced 1 Overlay
B. LOCAL PROCUREMENT As indicated in Consumable Products Manual (CPM):

• cleaner 

# FALCON 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 5 / 6DASSAULT AVIATION Proprietary DataFigure 1: LOCATION OF COMPONENTS



### END OF DOCUMENT 

# FALCON 900 F900-429

July 13, 2012 F900-25-32
Revision 1 Page 6 / 6SERVICE BULLETINS COMPLIANCE FALCON 900 A/C S/N

DASSAULT AVIATION Number ATA Number F900 429 F900 25 32 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 900 A/C S/N

DASSAULT AVIATION Number Numero DASSAULT AVIATION ATA Number Numero ATA F900 429 F900 25 32 Coding: C complete compliance application totale T partial compliance application partielle

Performed by: Fait par: Remarks: Revision 1 Date: Signature: Remarques: Revision 1