# Dassault Service Bulletin F900EX-476: Revision 1

- Rights: © Dassault Aviation. Filed by the FAA in regulations.gov docket FAA-2016-5594; AD 2016-15-05 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Dassault Service Bulletin F900EX-476](https://openairdocs.org/service-documents/dassault/f900ex-476.md)
- Title as filed: FAA-2016-5594_SB F900EX-476 R1
- Pages: 8
- PDF: https://openairdocs.org/files/sha256/e4/e0/e4e0bcffbcac900db3f49e31c53d8f07fa10c628dfde3f5d1a2b2e2a749a3dd4
- Page: https://openairdocs.org/service-documents/dassault/f900ex-476/file/e4e0bcffbcac

## Text

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

FALCON 900EX EASy
FALCON 900LX
No 476-R1
JUNE 25, 2014
MANDATORY
ATA 27-18
FLIGHT CONTROL
AILERON CONTROL SYSTEM
REPLACEMENT OF AILERON SERVO ACTUATOR
FALCON SERVICE BULLETIN
Copyright © 2014 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.
573

### Page 2

FLIGHT CONTROL
AILERON CONTROL SYSTEM
REPLACEMENT OF AILERON SERVO ACTUATOR
Initial issuance April 09, 2014
List of effective pages :
1 to 4
Revision 1 June 25, 2014
List of effective pages :
1 to 4
List of modified pages :
1 and 3
REASON:Modification of the effectivity.
FALCON 900EX F900EX -476
F900EX -27-18

### Page 3

FLIGHT CONTROL
AILERON CONTROL SYSTEM
REPLACEMENT OF AILERON SERVO ACTUATOR
 
1. PLANNING INFORMATION
A. EFFECTIVITY
This Service Bulletin is applicable to F900EX aircraft with serial numbers 177, 265 through 270, 272
and 273 (F900EX EASy, F900LX).
B. REASON
After a manufacturing transfer, a batch of suspected aileron servo actuators has been identified. On
these parts, the tightening torque of two nuts of the two adjustable link rods between the bellcranck
and the selector assembly is potentially not in conformity with the assembly rules because too low.
Due to the two screw-nut assemblies mechanical clearance potentially generated by this lack of
tightening torque, a wrong synchronization of the selector assembly can occur.
The purpose of this Service Bulletin is to replace the suspected aileron servo-actuators.
C. DESCRIPTION
Depending on the aircraft serial number, the operation consists in replacing the LH and/or RH aileron
servo-actuators.
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.
F. LABOR
Estimated labor-hours: Refer to Service Bulletin Commercial Summary.
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 900EX F900EX -476
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DASSAULT AVIATION Proprietary Data

### Page 4

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
E/H dafsorder@dassault-aviation.com
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 AILERON SERVO-ACTUATORS (Refer to TASK
27-12-01-900-801)
K. OTHER PUBLICATIONS AFFECTED
None.
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DASSAULT AVIATION Proprietary Data

### Page 5

2. ACCOMPLISHMENT INSTRUCTIONS
A. PRELIMINARY STEPS
(1) The aircraft must be in the maintenance configuration (Refer to TASK 20-00-00-910-801).
B. PROCEDURE
(1) Depending on the aircraft serial number, remove the applicable LH and/or RH aileron servo-
actuator (Refer to TASK 27-12-01-900-801):
Aircraft S/N
Aileron servo-actuator to be removed
LH (L521CC) RH (R521CC)
P/N S/N P/N S/N
177 N/A 103117-06 5003
265 N/A 103117-06 5002
266 103117-05 5000 103117-06 5007
267 103117-05 5001 N/A
268 103117-05 5004 N/A
269 103117-05 5005 103117-06 5011
270 103117-13 5017 103117-06 5012
272 103117-05 5010 103117-14 5016
273 103117-13 5014 103117-14 5020
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.
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DASSAULT AVIATION Proprietary Data

### Page 6

3. MATERIAL INFORMATION
A. MODIFICATION OF LH/RH AILERON SERVO-ACTUATOR PART NUMBER
NEW P/N
Q
T
Y
KEY WORD OLD P/N
103117-05 or
103117-06 or
103117-13 or
103117-14
with S/N not listed in § 2.B.(1) or with
S/N listed in § 2.B.(1) but with "D1"
inscribed on the repair placard
1 or 2 Aileron servo-actuator 103117-05 or
103117-06 or
103117-13 or
103117-14
with S/N listed in § 2.B.(1) without "D1"
inscribed on the repair placard
NOTE 1: Compliance with this Service Bulletin by substituting the above part number(s) with (an)
interchangeable subsequent part number(s) is acceptable, provided the subsequent part numbers have
the same effectivity as the original part number.
NOTE 2: The aileron servo-actuator(s) removed must be sent to one of the addresses listed in paragraph 1.G. of
this Service Bulletin.
 
END OF DOCUMENT
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DASSAULT AVIATION Proprietary Data

### Page 7 (OCR)

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

### Page 8

SERVICE BULLETINS COMPLIANCE FALCON 900EX A/C S/N    
DASSAULT AVIATION Number  ATA Number   
F900EX 476  F900EX 27 18   
        
        
        
        
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 900EX A/C S/N    
DASSAULT AVIATION Number
Numero DASSAULT AVIATION  
ATA Number
Numero ATA   
F900EX 476  F900EX 27 18   
        
        
        
        
Coding: C complete complianceapplication totale
 
T partial complianceapplication partielle
   
Performed by:
Fait par:
  
Remarks: Revision 1 Date: Signature:
Remarques: Revision 1

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