# FALCON 50

No 530
NOVEMBER 12, 2013 

# MANDATORY

ATA 24-34
ELECTRICAL POWER
INSTALLATION OF PROTECTIVE PLATES UNDER THE

GLARESHIELD 

# FALCON SERVICE BULLETIN

Copyright © 2013 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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### ELECTRICAL POWER

INSTALLATION OF PROTECTIVE PLATES UNDER THE GLARESHIELD

Initial issuance November 12, 2013 List of effective pages : 1 to 6 

# FALCON 50 F50 -530

F50 -24-34

### ELECTRICAL POWER

INSTALLATION OF PROTECTIVE PLATES UNDER THE GLARESHIELD

1. PLANNING INFORMATION
A. EFFECTIVITY This Service Bulletin is applicable to MYSTERE-FALCON 50 aircraft with serial numbers 5, 7, 27, 30, 34, 36, 78, 132, 251 through 352 and aircraft with DASSAULT AVIATION Service Bulletin F50-280 "Installation of ALLIED SIGNAL TFE731-40-1C engines". B. REASON Following an incident on in-service aircraft where the green slat extended light was permanently illuminated, investigations have shown that the wire bundle located behind the warning panel rubbed against the engine 3 fire "T" handle lock cap leading to wire cut and smoke in cockpit. Depending on the wire affected, several effects might occur: • untimely indication of reverser unlocking, • untimely indication of either slat or flap or airbrake or arthur active, • possible short-circuit of one 80 Amp-rated feeder supplying the pilot windshield de-icing system,

• possible activation of audio silencer in the audio warning unit for a few warnings, however the associated visual warnings remain unaffected, • possible malfunction of RH display, • possible malfunction of integrated avionics processor system power supply. The purpose of this Service bulletin is to prevent the chafing under the glareshield and behind the warning panel by adding protective plates to the wire bundles. C. DESCRIPTION This operation consists in adding two Rilsan protective plates between the glareshield electrical wiring and the engine fire pull handles. 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 This Service Bulletin covers DASSAULT AVIATION modification FALCON MF50 M3244 which has been approved under the authority of DOA nr. EASA.21J.051. 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 

# FALCON 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 1 / 6DASSAULT AVIATION Proprietary DataNOTE: 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. I. WEIGHT AND BALANCE Change in weight: None. Change in balance with respect to 25% MAC: None. J. REFERENCES Illustrated Parts Catalog: • COCKPIT SHROUD (Refer to IPC fig. 25-13-40-66 ) Aircraft Maintenance Manual: • GENERAL MAINTENANCE AND SAFETY PRECAUTIONS (Refer to TASK 20-00-00-910-801 ) 

# FALCON 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 2 / 6DASSAULT AVIATION Proprietary Data• OPERATIONAL TEST OF THE AUTOMATIC FLIGHT CONTROL SYSTEM (AFCS) ( Refer to TASK 22-10-00-710-801 )

• REMOVAL / INSTALLATION OF THE EFIS DISPLAY UNITS ( Refer to TASK 34-01-13-900-801 ) 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. 

# FALCON 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 3 / 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) Remove the instrument panel glareshield shroud (Refer to IPC fig. 25-13-40-66 , item 10). (3) Remove the following equipment to gain access to the modified area: • the MFD 1 ( L361NH )/MFD 2 ( R361NH ) (Refer to TASK 34-01-13-900-801 ), • the FCP ( 150CA ). (4) Disengage and pull the EIED 1 ( 10EA ) backward without removing it. (5) Cut the necessary Tyrap clamps (a-fig. 1) that attach the wirings to the windshield grounding plate and rod assembly until the Rilsan protective plates can be installed correctly. B. PROCEDURE
CAUTION: CHECK FOR ABSENCE OF INTERFERENCE BETWEEN THE RILSAN PROTECTIVE

PLATES AND THE WINDSHIELD GROUNDING PLATE. (1) Position the two Rilsan protective plates (1-fig. 1) as per fig. 1

. (2) Make sure that there is no interference between the rilsan protective plates (1-fig. 1) and the windshield grounding plate. (3) Install the two Rilsan protective plates (1-fig. 1) between the electrical wirings and the rod assembly (b-fig. 1) using the eight clamps (2-fig. 1) as per fig. 1

. NOTE: Each protective plate is fitted with four clamps:

• two clamps that maintain the protective cap with the rod assy (b-fig. 1),

• two clamps that maintain the protective cap, the electrical wiring and the rod assy (b-fig. 1).
C. FINAL STEPS (1) Install the equipment removed: • the MFD 1 ( L361NH )/MFD 2 ( R361NH ) (Refer to TASK 34-01-13-900-801 ), • the FCP ( 150CA ). (2) Push and engage the EIED 1 ( 10EA ). (3) Perform a test of the MFD 1 ( L361NH )/MFD 2 ( R361NH ) (Refer to TASK 34-01-13-900-801 ). (4) Perform an operational test of the FCP ( 150CA ) (Refer to TASK 22-10-00-710-801 ). (5) Install the instrument panel glareshield shroud (Refer to IPC fig. 25-13-40-66 , item 10). D. 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 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 4 / 6DASSAULT AVIATION Proprietary Data3. MATERIAL INFORMATION

A. MODIFICATION KIT Kit P/N SBF50-0530A

NEW P/N Q T Y KEY WORD ITEM FIG

F50B620131100A1 2 Protective plate Refer to (1-fig. 1) 78750-02 15 Tyrap clamp Refer to (2-fig. 1) 

# FALCON 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 5 / 6DASSAULT AVIATION Proprietary DataFigure 1: LOCATION OF THE RILSAN PROTECTIVE PLATES



### END OF DOCUMENT 

# FALCON 50 F50 -530

November 12, 2013 F50 -24-34
Initial issuance Page 6 / 6SERVICE BULLETINS COMPLIANCE FALCON 50 A/C S/N

DASSAULT AVIATION Number ATA Number F50 530 F50 24 34 Coding: C complete compliance T partial compliance

Performed by: Remarks: Initial issuance 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 50 A/C S/N

DASSAULT AVIATION Number Numero DASSAULT AVIATION ATA Number Numero ATA F50 530 F50 24 34 Coding: C complete compliance application totale T partial compliance application partielle

Performed by: Fait par: Remarks: Initial issuance Date: Signature: Remarques: Edition originale