Dassault SB F900-485: No revision named, text

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Page 1Open in PDF

FALCON 900 No 485 JANUARY 16, 2023

MANDATORY ATA 30-13

ICE AND RAIN PROTECTION

WING ANTI-ICING

INSPECTION OF WING ANTI-ICING WIGGINS

COUPLINGS

FALCON SERVICE BULLETIN Copyright © 2023 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.

Page 2Open in PDF

ICE AND RAIN PROTECTION

WING ANTI-ICING

INSPECTION OF WING ANTI-ICING WIGGINS COUPLINGS Initial issuance January 16, 2023 List of effective pages:

1 to 6 FALCON 900 F900 -485 F900 -30-13

Page 3Open in PDF

ICE AND RAIN PROTECTION

WING ANTI-ICING

INSPECTION OF WING ANTI-ICING WIGGINS COUPLINGS

1. PLANNING INFORMATION A. EFFECTIVITY This Service Bulletin is applicable to FALCON 900 aircraft with serial numbers 1 thru 202 that have not performed the general visual inspection of the wings (Refer to TASK 57-00-00-210-801), included in Aircraft Maintenance Manual Revision 56 - Update 3, after April 8, 2021.

B. REASON Occurrences of wing anti-icing leaks in the wing leading edge, due to incorrect installation of Wiggins coupling on the wing anti-icing system, were observed in service.

These conditions, if not detected and corrected, can result in degraded wing anti-icing performance.

The purpose of this Service Bulletin is to inspect the wing anti-icing Wiggins couplings.

C. DESCRIPTION The operation consists in checking the wing anti-icing Wiggins couplings for correct installation.

D. COMPLIANCE Mandatory 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 the DOA ref. 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 that may be performed on this occasion.

FALCON 900 F900 -485 January 16, 2023 F900 -30-13 Initial issuance Page 1 / 6 DASSAULT AVIATION Proprietary Data

Page 4Open in PDF

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:

• U.S.A. and CANADA:1-800-800-4036

• MEXICO: 001-800-800-4036

• Other countries: 1-201-541-4809 Email to: Customer.Care@DassaultFalconJet.com Other continents: DASSAULT AVIATION Falcon Spares 54, AVENUE MARCEL DASSAULT B.P. 24 33701 MERIGNAC Cedex (FRANCE) Telephone: 33 (0)5.56.18.44.44 Email to: dafsorders@dassault-aviation.com Price and availability on request.

H. TOOLING

- TOOL BOX (TO-20-008).

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)

• USE OF THE AIRCRAFT MAINTENANCE PROCEDURES (Refer to TASK 20-00-00-910-803)

• REMOVAL / INSTALLATION OF WIGGINS W991 COUPLINGS (Refer to TASK 20-41-00-900-801)

• GENERAL VISUAL INSPECTION OF THE WINGS (Refer to TASK 57-00-00-210-801) FALCON 900 F900 -485 January 16, 2023 F900 -30-13 Initial issuance Page 2 / 6 DASSAULT AVIATION Proprietary Data

Page 5Open in PDF

2. ACCOMPLISHMENT INSTRUCTIONS A. PRELIMINARY STEPS

(1) Obey the general maintenance and safety precautions (Refer to TASK 20-00-00-910-801).

(2) The aircraft must be in the maintenance configuration (Refer to TASK 20-00-00-910-803).

(3) Fully extend the slats (Refer to TASK 27-50-00-860-802 - "EXTENSION IN NORMAL MODE").

(4) Inhibit slat deflection (Refer to TASK 27-50-00-860-802 - "EXTENSION IN NORMAL MODE" ) "OPERATION ON SLATS OR FLAPS EXTENDED").

(5) De-energize the aircraft systems (Refer to TASK 24-00-00-860-801).

(6) Remove:

• wing lower surface inboard leading edge access panel (512BB) / wing lower surface inboard leading edge access panel (612BB),

• wing lower surface inboard leading edge access panel (512CB) / wing lower surface inboard leading edge access panel (612CB),

• wing lower surface outboard leading edge access panel No. 1 (522AB) / wing lower surface outboard leading edge access panel No. 1 (622AB).

B. PROCEDURE CAUTION: THE CLAMP MUST ROTATE FREELY AROUND THE TWO FERRULES.

(1) Check the wing anti-icing Wiggins couplings ( 1-fig. ) on LH and RH sides for:

• condition,

• correct installation,

• deformation,

• leakage or signs of overheating,

• free rotation of the clamp around the two ferrules.

(2) In case of findings, replace or re-install the affected wing anti-icing Wiggins coupling with new seals (Refer to TASK 20-41-00-900-801).

C. FINAL STEPS

(1) Install the access panels and doors removed previously.

(2) Return the aircraft to the initial configuration.

D. RECORDING Record compliance with this Service Bulletin in the appropriate aircraft documents.

Fill out the electronic Service Bulletin reply form accessible from the ”Service Bulletin" page on the Falcon portal or register SB implementation at Sbconfiguration@dassault-aviation.com, providing all useful information for aircraft identification:

• aircraft type and serial number,

• SB compliance: complete or section(s) applied,

• remarks,

• compliance date, FALCON 900 F900 -485 January 16, 2023 F900 -30-13 Initial issuance Page 3 / 6 DASSAULT AVIATION Proprietary Data

Page 6Open in PDF

• service center.

FALCON 900 F900 -485 January 16, 2023 F900 -30-13 Initial issuance Page 4 / 6 DASSAULT AVIATION Proprietary Data

Page 7Open in PDF

3. MATERIAL INFORMATION NOTE: Compliance with this Service Bulletin by substituting the part numbers below with interchangeable subsequent part numbers (as per the Master List) is acceptable, provided that subsequent part numbers have the same effectivity as the original ones.

A. LOCAL PROCUREMENT In case of replacement:

• Wiggins coupling P/N W991-24CE

• Seal P/N W932-24B FALCON 900 F900 -485 January 16, 2023 F900 -30-13 Initial issuance Page 5 / 6 DASSAULT AVIATION Proprietary Data

Page 8OCROpen in PDF

DASSAULT SERVICE BULLETIN

AVIATION FALCON 900 F900 -485 A/C WITH SB F900-031 OR M767 RIB1 RIBB L501HJ/R501HJ L502HJ/R502HJ Figure 1: LOCATION OF WING ANTI-ICING WIGGINS COUPLINGS January 16, 2023 END OF DOCUMENT F900-30-13 Initial issuance Page 6 / 6