# Dassault Service Bulletin F50-481: Revision 1

- Rights: © Dassault Aviation. Filed by the FAA in regulations.gov docket FAA-2015-3629; AD 2016-19-13 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Dassault Service Bulletin F50-481](https://openairdocs.org/service-documents/dassault/f50-481.md)
- Title as filed: SBF50-481 R1
- Pages: 22
- PDF: https://openairdocs.org/files/sha256/de/86/de86429e8fde1046a659eb0e9d7d75409820e771e5b48b33dd9bb8cfbdbe30b9
- Page: https://openairdocs.org/service-documents/dassault/f50-481/file/de86429e8fde

## 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 50
No 481-R1
JANUARY 26, 2015
MANDATORY
ATA 33-21
LIGHTING
EXTERIOR LIGHTING
ELECTRICAL BONDING OF WHELEN FIN TIP ANTI-
COLLISION LIGHT
FALCON SERVICE BULLETIN
Copyright © 2015 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.
207

### Page 2

LIGHTING
EXTERIOR LIGHTING
ELECTRICAL BONDING OF WHELEN FIN TIP ANTI-COLLISION LIGHT
Initial issuance August 22, 2007
List of effective pages :
1 to 17
Revision 1 January 26, 2015
List of effective pages :
1 to 18
List of modified pages :
1 to 17
REASON:The Service Bulletin is now rendered mandatory.
This revision is not applicable to aircraft already modified per the initial issuance of
this Service Bulletin.
FALCON 50 F50 -481
F50 -33-21

### Page 3

LIGHTING
EXTERIOR LIGHTING
ELECTRICAL BONDING OF WHELEN FIN TIP ANTI-COLLISION LIGHT
 
1. PLANNING INFORMATION
A. EFFECTIVITY
This Service Bulletin is applicable to MYSTERE-FALCON 50 aircraft with serial numbers 2 through
352, equipped with a WHELEN fin tip anti-collision light (without SATCOM fairing) per Service Bulletin
F50-241 (M1853).
B. REASON
The investigation conducted on a Falcon 2000 aircraft that had been struck by lightning has shown
that the electrical bonding of the fin tip anti-collision light may not be sufficient under certain
circumstances, potentially resulting in damaging the aircraft wiring.
The purpose of this Service Bulletin is to improve the electrical bonding of the MYSTERE-FALCON 50
fin tip anti-collision light whose installation is similar to the F2000.
C. DESCRIPTION
After removing the fin tip fairing, the operation consists of the following:
• to install an electrical bonding strip in two parts between the anti-collision light and a rib of the
fin,
• to modify the shield connection of the wiring,
• to modify the routing of the wiring.
On some of the fairings, it is required to machine a cutout in the rib.
D. COMPLIANCE
Mandatory:
• This Service Bulletin is rendered mandatory by EASA Airworthiness Directive No. 2015-0006.
• As prescribed by the Airworthiness Authorities of the country of registration of the aircraft.
E. APPROVAL
This Service Bulletin covers DASSAULT AVIATION modification MF50 M3094 that 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.
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.
G. MATERIAL - PRICE AND AVAILABILITY
The modification kit may be obtained from either address listed below:
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 1 / 18
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)
• PRINCIPLES AND CHECK OF THE ELECTRICAL BONDING (Refer to TASK
20-20-00-910-801)
• OPERATIONAL TEST OF THE EXTERIOR LIGHTING (Refer to TASK 33-40-00-710-801)
Illustrated Parts Catalog:
• FIN ANTI-COLLISION LIGHT (Refer to IPC fig. 33-40-10-65)
• FIN TIP RED ANTI-COLLISION LIGHT ASSEMBLY (Refer to IPC fig. 33-40-30-45)
• VERTICAL STABILIZER DOORS,RIB05 TO RIB10C (Refer to IPC fig. 55-30-20-30)
• VERTICAL STABILIZER FIN TIP (Refer to IPC fig. 55-30-40-10)
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 2 / 18
DASSAULT AVIATION Proprietary Data

### Page 5

Service Bulletin F50-241 "Lighting - Exterior lighting - Replacement of fin anti-collision light"
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.
• Maintenance Manual.
• Wiring Manual.
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 3 / 18
DASSAULT AVIATION Proprietary Data

### Page 6

2. 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 screws attaching upper fin tip fairing ( 322A) (Refer to IPC fig. 55-30-40-10 , item 10).
(3) Disengage upper fin tip fairing (322A), disconnect connector (322P) and remove upper fin tip
fairing (322A).
(4) On aircraft S/N 2 through 252 with Service Bulletin F50-241 applied, remove door (323K) (Refer
to IPC fig. 55-30-20-30 , item 210).
(5) Removal of the light unit assembly (Refer to IPC fig. 33-40-10-65 ), (Refer to IPC fig.
33-40-30-45):
• Remove the PR bead coating the retainer (Refer to IPC fig. 33-40-30-45 , item 200) without
removing the flexible gasket located underneath.
• Remove the retainer, glass cover and seal (Refer to IPC fig. 33-40-30-45 , items 200, 230
and 240).
• Remove the light unit assembly (Refer to IPC fig. 33-40-10-65 , item 10).
NOTE: Remove and discard gasket (Refer to IPC fig. 33-40-30-45 , item 260) if installed.
B. PREPARING FAIRINGS F50B319, (A1), (A2) AND FGFB319, (A1)
NOTE: If not concerned, go to step 2.C.
(1) Remove the contacts from connector (17L).
(2) Extract the wiring from the feedthrough at the upper part of rib 3.
NOTE: The wiring will be re-routed in accordance with the instructions of paragraph 2.F.
(3) Machine the cutout in rib 3 in accordance with fig. 7.
C. ANTI-COLLISION LIGHT ELECTRICAL BONDING
In accordance with fig. 1 or fig. 2 depending on the P/N of the existing fairing.
(1) Cut out the run outs of the compound seal to obtain a plane mounting surface.
(2) Set the mounting-base bonding strip (item 1), equipped with shim (item 8), into place on the
fairing. Attach with two screws.
(3) Fold the tab of the strip to a 90° angle with respect to the fairing’s rib.
(4) Pin the strip assembly (items 2 and 3) to the fairing.
(5) Position the strip assembly (items 2 and 3) in contact against the RH side panel of the fairing and
on strip (item 1). If necessary, rework the shape of the strips to obtain proper contact.
(6) Remove the strip assembly (items 2 and 3).
(7) Install double–sided adhesive tape on the face coming in contact with bonding strip (item 1).
(8) Re-install strip assembly (items 2 and 3). Pin to hold in contact against the fairing.
(9) Install strip (item 1) over the strip assembly, pressing firmly at the contact area).
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 4 / 18
DASSAULT AVIATION Proprietary Data

### Page 7

(10) Remove the strip assembly (items 1, 2 and 3).
(11) Counterdrill bonding strip (item 2) to a diameter of 0.1 in (2.5 mm). Disconnect the strips and
discard the adhesive tape, remove all remaining adhesive.
(12) Enlarge the holes drilled in the strips to a diameter of 0.126 in (3.2 mm). Assemble bonding strips
(items 1 and 2) using rivets (item 4). Coat the faces of the strips with covering sealant making a
bead at the contour edge with bead sealant.
(13) Clean the contact surfaces of the light unit assembly, of the strips, and of the fairing using MEK.
(14) Coat the strip assembly (items 2 and 3) with interlaying sealant.
(15) Set the strip assembly and the light unit assembly into place in the fairing without making
electrical connections and attach the light assembly to the fairing. Smooth out the PR in excess
around the strips (items 2 and 3).
(16) Use a shim to wedge strip assembly (items 2 and 3) in contact against the fairing’s wall. Allow to
cure.
(17) Temporarily position the fairing at the fin tip and mark the location of strip (item 3).
(18) Strip the paint off the fin tip rib at the location marked for strip (item 3). Protect the stripped area
with alodine.
D. MODIFYING THE WIRING
Modify the shield connection in accordance with instructions depicted hereafter and using fig. 3 and 
fig. 4 in accordance with lights’ installation on the aircraft.
Dimension A:
• Connector with front extraction: 1.38 in (35 mm).
• Connector with rear extraction: 1.97 in (50 mm).
Self–soldering sleeves must be staggered at the extremity of the wiring assemblies so as to prevent a
bulge on the bundle.
INSTALLING SELF-SOLDERING SLEEVES
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 5 / 18
DASSAULT AVIATION Proprietary Data

### Page 8

• After stripping the shielded cable and the ground lead wire, unwind the shielding braid of cable
without overlapping the shielding strands.
• Position the self-soldering sleeve on the stripped part of the cable.
• Insert the stripped part of the ground lead wire on the inside of the solder preform. Make sure
that the ground lead wire is installed against the guide provided for this purpose.
• With hot air or infrared generator equipped with an appropriate reflector, start heating the small
diameter of the self-soldering sleeve, then move up to the solder preform until it melts and flows.
Complete the operation on the large side of the self-soldering sleeve. It is recommended to
position the solder preform at a 90° angle maximum in relation to the heat source. The solder
must always be visible to the operator.
• The insulating sheath of the shielded cable must not be blistered nor burnt.
E. RE-ROUTING THE WIRING WITH WIRING ROUTED OVER RIB 2
In accordance with fig. 5:
(1) Remove the WHELEN light unit assembly.
(2) Drill a 0.19 in (4.9 mm) diameter hole through the rib of the fairing.
(3) Install new clamping stud (item 5) on rib 3.
(4) Unclamp the wiring from rib 2.
(5) Clamp the wiring to rib 3.
(6) Connect connector (4LX) to the WHELEN light.
(7) Attach the light unit assembly to the fairing.
(8) Install the gasket, the glass cover, and the retainer (Refer to IPC fig. 33-40-30-45 , items 200, 230
and 240).
(9) Apply bead sealant around the retainer.
F. RE-ROUTING THE WIRING WITH WIRING ROUTED AROUND THE BACK OF FAIRING
In accordance with fig. 6  (Fairing P/N F50B319BX or FGFB319A2, (A3)) or fig. 7  (Fairing P/N
F50B319, (A1), (A2) or FGFB319, (A1))
(1) Remove the WHELEN light unit assembly.
(2) Drill a 0.19 in (4.9 mm) diameter hole through the rib of the fairing.
(3) Install new clamping stud (item 5) on rib 3.
(4) Remove contacts from connector (17L).
(5) Adjust the wiring length for proper re–routing in accordance with fig. 6.
(6) Fit the cut wires with new contacts and insert them into connector (17L).
(7) Clamp the wiring to rib 3.
(8) Connect connector (17L) to the WHELEN light.
(9) Attach the light unit assembly to the fairing.
(10) Install the gasket, the glass cover, and the retainer (Refer to IPC fig. 33-40-30-45 , items 200, 230
and 240).
(11) Apply bead sealant around the retainer.
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 6 / 18
DASSAULT AVIATION Proprietary Data

### Page 9

G. FINAL STEPS
(1) Use a permanent ink pen to record the number of this Service Bulletin on "Service Bulletin
Compliance" label (7-fig. 6).
(2) Use interlaying sealant to bond the "Service Bulletin Compliance" label to the inner skin of the
fairing next to the P/N (7-fig. 7).
(3) Place the fairing on the fin tip, connect connector (322P) and attach the fairing.
(4) Re-install the door (323K) (Refer to IPC fig. 55-30-20-30  , item 210 ) (aircraft S/N 2 through 252
with Service Bulletin F50-241 applied).
(5) Measure the electrical bonding across the anti–collision light retainer plate and the reference point
located in the mechanic’s servicing compartment (Refer to TASK 20-20-00-910-801).
The measured value must not exceed 2 mΩ
(6) Perform the opperational test of the upper anti-collision light (Refer to TASK 33-40-00-710-801).
H. 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 -481
January 26, 2015 F50 -33-21
Revision 1 Page 7 / 18
DASSAULT AVIATION Proprietary Data

### Page 10

3. MATERIAL INFORMATION
A. MODIFICATION KIT
KIT P/N SBF900EX0285A
APPLICABLE TO AIRCRAFT EQUIPPED WITH FAIRINGS F50B319BX OR FGFB319A2, (A3)
KIT P/N SBF900EX0285A - Mechanical kit
NEW P/N
Q
T
Y
KEY WORD INSTRUCTIONSDISPOSITION ITEMFIG
FGFB319100010 1 Mounting-base bonding
strip Supply already assembled
- (1-fig. 1) -
FGFB319100038 1 Shim - (8-fig. 1) -
FGFB319100036 1 Strip
Supply already assembled
- (2-fig. 1) -
FGFB319100037A1 1 Strip - (3-fig. 1) -
NAS1919M04S02WU 3 Rivet - (4-fig. 1) -
78753 1 Studded support - (5-fig. 5) - (5-fig. 6) -
78750-02 1 Clamp - (6-fig. 5) - (6-fig. 6) -
79160 1 "Service Bulletin
Compliance" label
- (7-fig. 5) - (7-fig. 6) -
KIT P/N SBF900EX0285A - Electrical kit
NEW P/N
Q
T
Y
KEY WORD INSTRUCTIONSDISPOSITION FIG
01EQTC0S20-05-119-18 1 Lug 322J or 312J - fig. 3 - fig. 4 -
01C0K302-16S01 1 Contact 322J or 312J - fig. 3 - fig. 4 -
01CAN210-1-20 1 #20 gauge wire L= 3.3 ft (1 m) 322J or 312J - fig. 3 - fig. 4 -
01C0A54143FC16 4 Blanking pin 322J/P - fig. 3 - fig. 4 -
01EQTRB23-2R 1 Self-soldering sleeve 4LX or 17L - fig. 3 - fig. 4 -
01CAN210-1-22 1 #22 gauge CF wire L = 1 ft (0.3 m) - See
NOTE 1
4LX - fig. 3 -
01CAN203-1-22Y 1 #22 gauge KZ wire L = 1 ft (0.3 m) - See
NOTE 2
4LX or 17L - fig. 3 - fig. 4 -
01EQTC0S20A03-071-22 1 Lug 4LX or 17L - fig. 3 - fig. 4 -
01C0K345-16S01 2 Contact 4LX or 17L - fig. 3 - fig. 4 -
01EQTEC1-1 1 Insulating sleeve 322P or 312P - fig. 3 - fig. 4 -
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 8 / 18
DASSAULT AVIATION Proprietary Data

### Page 11

KIT P/N SBF900EX0285A - Electrical kit
NEW P/N
Q
T
Y
KEY WORD INSTRUCTIONSDISPOSITION FIG
01EQTEC1-1 4 Insulating sleeve - See NOTE 3 312J/P - fig. 4 -
01EQTPRL08B01 1 Splice - See NOTE 3 SP16L-B - fig. 4 -
GND322J-B 2 Black sleeve with white marking
01PR0TMS3-32BK
322J - fig. 3 -
GND312J-B 2 Black sleeve with white marking
01PR0TMS3-32BK
312J - fig. 4 -
A 1 Black sleeve with white marking
01PR0TMS3-32BK
4LX or 17L - fig. 3 - fig. 4 -
B 1 Black sleeve with white marking
01PR0TMS3-32BK
4LX or 17L - fig. 3 - fig. 4 -
78750-01 5 Clamp 4LX or 17L - fig. 3 - fig. 4 -
NOTE 1: Use on MYSTERE-FALCON 50 S/N 2 through 340.
NOTE 2: Use on FALCON 50 S/N 341 and subsequent.
NOTE 3: Use on FALCON 50 S/N 2 through 252.
KIT P/N SBF50–0481A
APPLICABLE TO AIRCRAFT EQUIPPED WITH FAIRINGS F50B319, (A1), (A2) OR FGFB319, (A1)
KIT P/N SBF50–0481A - Mechanical kit
NEW P/N
Q
T
Y
KEY WORD INSTRUCTIONSDISPOSITION ITEMFIG
FGFB319100010W1 1 Mounting-base bonding strip
Supply already assembled
- (1-fig. 2) -
FGFB319100038 1 Shim - (8-fig. 2) -
FGFB319100036W1 1 Strip
Supply already assembled
- (2-fig. 2) -
FGFB319100037W 1 Strip - (3-fig. 2) -
NAS1919M04S02WU 3 Rivet - (4-fig. 2) -
78753 1 Studded support - (5-fig. 7) -
78750-02 1 Clamp - (6-fig. 7) -
79160 1 "Service Bulletin Compliance" label - (7-fig. 5) - 
(7-fig. 6) - 
(7-fig. 7) -
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 9 / 18
DASSAULT AVIATION Proprietary Data

### Page 12

KIT P/N SBF50–0481A - Electricall kit
NEW P/N
Q
T
Y
KEY WORD INSTRUCTIONSDISPOSITION FIG
01EQTC0S20-05-119-18 1 Lug 322J or 312J - fig. 3 - fig. 4 -
01C0K302-16S01 1 Contact 322J or 312J - fig. 3 - fig. 4 -
01CAN210-1-20 1 #20 gauge wire L= 3.3 ft (1 m) 322J or 312J - fig. 3 - fig. 4 -
01C0A54143FC16 4 Blanking pin 322J/P - fig. 3 - fig. 4 -
01EQTRB23-2R 1 Self-soldering sleeve 4LX or 17L - fig. 3 - fig. 4 -
01CAN210-1-22 1 #22 gauge CF wire L = 1 ft (0.3 m) - See
NOTE 1
4LX or 17L - fig. 3 -
01CAN203-1-22Y 1 #22 gauge KZ wire L = 1 ft (0.3 m) - See
NOTE 2
4LX - fig. 3 - fig. 4 -
01EQTC0S20A03-071-22 1 Lug 4LX or 17L - fig. 3 - fig. 4 -
01C0K345-16S01 2 Contact 4LX or 17L - fig. 3 - fig. 4 -
01EQTEC1-1 1 Insulating sleeve 322P or 312P - fig. 3 - fig. 4 -
01EQTEC1-1 4 Insulating sleeve - See NOTE 3 312J/P - fig. 4 -
01EQTPRL08B01 1 Splice - See NOTE 3 SP16L-B - fig. 4 -
GND322J-B 2 Black sleeve with white marking
01PR0TMS3-32BK
322J - fig. 3 -
GND312J-B 2 Black sleeve with white marking
01PR0TMS3-32BK
312J - fig. 4 -
A 1 Black sleeve with white marking
01PR0TMS3-32BK
4LX or 17L - fig. 3 - fig. 4 -
B 1 Black sleeve with white marking
01PR0TMS3-32BK
4LX or 17L - fig. 3 - fig. 4 -
78750-01 5 Clamp 4LX or 17L - fig. 3 - fig. 4 -
NOTE 1: Use on MYSTERE-FALCON 50 S/N 2 through 340.
NOTE 2: Use on FALCON 50 S/N 341 and subsequent.
NOTE 3: Use on FALCON 50 S/N 2 through 252.
B. LOCAL PROCUREMENT
As indicated in Consumable Products Manual (CPM):
• alodine.
• interlaying sealant.
• bead sealant.
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 10 / 18
DASSAULT AVIATION Proprietary Data

### Page 13

• covering sealant.
• MEK or equivalent.
• Green CELOMER varnish 6060B.
• Locking wire.
FALCON 50 F50 -481
January 26, 2015 F50 -33-21
Revision 1 Page 11 / 18
DASSAULT AVIATION Proprietary Data

### Page 14 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
Joggle
Make a lay of bead
sealant arround edge
Coat the 2 faces of
strips with covering sealant
Base plate  Light  Bead sealant
Light  90°  DASSAULT AVIATION Proprietary Data
unit
assembly
VIEW B
(Inside fairing RH side)
VIEW A
3
Rib 3
Clean strip mounting area on fin rib.  Bond strips (items 2 and 3) to
Protect with Alodine  RH side of fairing with
interlaying sealant
Figure 1: ELECTRICAL BONDING ON AIRCRAFT WITH FAIRINGS F50B319BX AND FGFB319A2 (A3)
January 26, 2015  F50 -33-21
Revision 1  Page 12 / 18

### Page 15 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
Joggle
Make a lay of bead sealant
arround edge
Coat the 2 faces of
strips with covering sealant
Bead sealant  Light  Base
plate
Light
assembly  unit  1 900
VIEW B
(Inside fairing RH side)
VIEW A
Rib
(ž0г
Clean strip mounting area on fin rib.  Bond strips (items 2 and 3)
Protect with Alodine  to RH side of fairing with
interlaying sealant
Figure 2: ELECTRICAL BONDING ON AIRCRAFT WITH FAIRINGS P/N F50B319, (A1), (A2) AND FGFB319,
(A1)
January 26, 2015  F50-33-21
Revision 1  Page 13 / 18

### Page 16 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
BEFORE SB
WIRING P/N F2MA910121003A4  ANTICOL STROBE LIGHT
WIRING P/N F2MA910121007A3
4LX
74FT  322
L40SP  L36SP
FLASH
150W
RED
FIN TIP
INCORPORATE INTO
WDM 33-44-02
AFTER SB
WIRING P/N F2MA910121003A4  ANTICOL STROBE LIGHT
WIRING P/N F2MA910121007A3
4LX
74FT  322
L40SP  L36SP
FLASH
GND322J-B
150W
RED
FIN TIP
AIRCRAFT F50EX  AIRCRAFT F50EX
S/N 253 through 340  S/N 341 and subsequent
4LX  4LX
01CAB210-2-20  R  01CAB211-2-20  IR
•  B  B
122CF  122KZ
Figure 3: AIRCRAFT S/N 253 AND SUBSEQUENT
January 26, 2015  F50-33-21
Revision 1  Page 14 / 18

### Page 17 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
17L  ZONING 323
122
122CF
LX16F18  - LX14F18  LX15F18  - LX16F18
LX18F20  01CAB210-2-20  312P
BEFORE SB  312J  • LX18E20  AFTER SB  312J
_X14E18  _X15E18  LX16E18  LX14E18  LX15E18  LX16E18
INCORPORATE INTO  WDM 33-44-02
Figure 4: AIRCRAFT S/N 2 THROUGH 252 WITH SB F50-241
January 26, 2015  F50-33-21
Revision 1  Page 15 / 18

### Page 18 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
Old routing of Whelen light wiring
Rib 2  Rib 3
Bond near P/N
New routing of Whelen light wiring  5\6
Drill 0.19 in (4.9 mm) diameter  View F
hole for installation of stud
(item 5)
1.57 in  (40 mm)
Existing drilled hole
Figure 5: AIRCRAFT WITH WIRING ROUTED OVER RIB 2
January 26, 2015  F50-33-21
Revision 1  Page 16 / 18

### Page 19 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
Anti-collision light
Bond near P/N
Old routing
New routing of Whelen light wiring  of Whelen
light wiring
Drill 0.19 in (4.9 mm) diameter  View F
hole for installation of stud
(item 5)
1.57 in  (40 mm)
Existing drilled hole
Figure 6: AIRCRAFT WITH WIRING ROUTED AROUND THE BACK OF FAIRING
January 26, 2015  F50-33-21
Revision 1  Page 17 / 18

### Page 20 (OCR)

DASSAULT  SERVICE BULLETIN
AVIATION
FALCON 50  F50 -481
Anti-collision light
Bond near P/N
7)
New routing of Whelen light wiring  56  Old routing
of Whelen
R=0.4  light wiring
(10)
Cut opening in rib 3
0.16  0.16
(4)  (4)
R=0.4
(10)
View F
Drill 0.19 in (4.9 mm) diameter
hole for installation of stud
(item 5)
Existing drilled hole
Dimensions are in inches (mm)
Figure 7: OPENING IN RIB 3 ON A/C EQUIPPED WITH FAIRINGS - F50B319, (A1), (A2) AND FGFB319,
January 26, 2015  END OF DOCUMENT  F50-33-21
Revision 1  Page 18 / 18

### Page 21 (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 22

SERVICE BULLETINS COMPLIANCE FALCON 50 A/C S/N    
DASSAULT AVIATION Number  ATA Number   
F50 481  F50 33 21   
        
        
        
        
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 50 A/C S/N    
DASSAULT AVIATION Number
Numero DASSAULT AVIATION  
ATA Number
Numero ATA   
F50 481  F50 33 21   
        
        
        
        
Coding: C complete complianceapplication totale
 
T partial complianceapplication partielle
   
Performed by:
Fait par:
  
Remarks: Revision 1 Date: Signature:
Remarques: Revision 1

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.