# Bombardier Service Bulletin 605-33-005

Copy: Revision 02 ("605_33_005_rev 2"), 15 pages: PDF https://openairdocs.org/files/sha256/a6/b9/a6b9beae5cd37ff734c6bcd684db99930d8f479591f424e1f60bb1892a789dda; text https://openairdocs.org/service-documents/bombardier/sb-605-33-005/file/a6b9beae5cd3.md. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2018-0550; AD 2018-20-21 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Bombardier](https://openairdocs.org/service-documents/bombardier.md)
- Type: Service bulletin (Service Bulletin)
- Number: 605-33-005
- Latest revision known: 605-33-005, Revision 02, dated October 2, 2017 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/bombardier/sb-605-33-005

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2018-20-21](https://openairdocs.org/ad/2018-20-21.md), effective Nov 20, 2018: Revisions 01 and 02

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/bombardier/sb-605-33-005/proposed.md).

## Text (15 pages)

Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2018-0550; AD 2018-20-21 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

Discard Revision 01 of this Service Bulletin dated Nov 30/2015 and replace in its entirety
with this Revision 02.
Service Bulletin No. 605−33−005
Date of Basic Issue Sep 29/2015
Revision No. 01 Dated Nov 30/2015
Revision No. 02 Dated Oct 02/2017
This revision has no effect for aircraft on which the Basic Issue or Revision 01 of this
Service Bulletin was done thus no other action is necessary. Do not sign the log book
if you have not done this revision. Keep the previous log book entry. You may make
an entry as "Not Applicable" for this revision.
This revision is issued to advise the operators that changes to Paragraph 2.B.,
Accomplishment Instructions, and Paragraph 3.B., Parts, have been made. The changes are
as follows:
1. Change Paragraphs 1.D. and Paragraph 1.K., to add a reference to TCCA, Airworthiness
Directive (AD), CF−2016−40.
2. Change Paragraph 1.E. to update the Approval Statement.
3. Change Paragraphs 2.A. 2.B., and 2.D., to add new notes for alternative instructions.
4. Change Paragraphs 2.B.(3),, and 2.B.(6) to update the Accomplishment Instructions.
5. Change Paragraph 3.B., to update the parts.
6. Make miscellaneous minor changes, as necessary, with no change of context.
SERVICE BULLETIN
MODEL CL−600−2B16
605−33−005
Page 1 of 1
REVISION TRANSMITTAL SHEET

### Page 2

MODIFICATION - FLOODLIGHTING PANEL - COCKPIT FLOODLIGHT GASKET
INSTALLATION TO PREVENT WATER INGRESS
The information below is provided for your reference. For full details, including labor and part
coverage, please see corresponding paragraph contained within this bulletin.
RECOMMENDED
SPECIFIED TIME COMPLIANCE
COMPLIANCE TIME
Within 48 months from this Service Bulletin
release date (Basic Issue)
EFFECTIVITY: A/C Serial No. 5701 to 5988
MANPOWER: 2 man−hours
CONTINUED AIRWORTHINESS (CAW)
FLEET CAMPAIGN NOYES
TLMC, CH 5 AFFECTED NOYES
KITS and/or PARTS YES NO
TOOLING/GSE YES NO
PLANNING INFORMATION NOYES
DEDICATED SCHEDULE NOYES
PREREQUISITE SERVICE BULLETINS: N/A
To place an order for parts or kits, please call Bombardier Aerospace Parts Services
at:
514−855−2999 or 1−866−538−1247
SERVICE BULLETIN SUMMARY
my.businessaircraft.bombardier.com
MODEL CL−600−2B16
ATA 33−11
LIGHTS
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 1 of 1
This Service Bulletin is available at:

### Page 3

MODIFICATION - FLOODLIGHTING PANEL - COCKPIT FLOODLIGHT GASKET
INSTALLATION TO PREVENT WATER INGRESS
1. PLANNING INFORMATION
A. Effectivity
CL−600−2B16 aircraft, Serial No. 5701 to 5988.
NOTE: The instructions given in this Service Bulletin are only applicable to the
systems and parts installed at the time of delivery of the aircraft or as
changed by Bombardier Aerospace Service Bulletin(s).
Before you do this bulletin, examine all STC, STA or equivalent action
changes to make sure that this bulletin can be completed.
B. Reason
Several cases have been reported where one cockpit floodlight was found burned
and the corresponding circuit breaker tripped.
After investigation, it was found that the water ingress into the floodlight fixture
caused the short circuit of one or more floodlight lamps. This led to an overheating
condition of floodlight fixtures and to burning of the lamp assembly and wiring.
This Service Bulletin gives instructions to install a new gasket seal to floodlight
fixtures in order to stop water ingress into the floodlight fixtures and thus to prevent
the short−circuit of the floodlight bulbs and/or cable overheat damage.
SERVICE BULLETIN
my.businessaircraft.bombardier.com
MODEL CL−600−2B16
ATA 33−11
LIGHTS
Refer to applicable governmental agency regulations and requirements and make sure that the work described in this
Service Bulletin is performed in compliance with manufacturer’s recommendations and/or acceptable industry standards.
This document is proprietary to Bombardier Inc. and/or its affiliates and may not be reproduced or copied in any form or
by any means without the prior written consent of Bombardier Inc. and/or its affiliates.
 2015−2017 Bombardier Inc.  All rights reserved
Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 1 of 11
This Service Bulletin is available at:

### Page 4

C. Description
This Service Bulletin gives instructions to:
− Get access to the floodlight fixtures DS3LA (pilot console) and DS7LA (copilot
console) in the cockpit,
− Remove the floodlight fixtures DS3LA and DS7LA from the support panel,
− Remove existing heat−shrinkable tubing from fixtures and install 6 inches of
new tubing,
− Install the gasket to the holder assy,
− Install the floodlight fixtures DS3LA and DS7LA, and
− Do the necessary tests to make sure that the system operates correctly.
D. Compliance
Recommended within 48 months from this Service Bulletin release date (Basic
Issue).
NOTE: This Service Bulletin is in reference to Transport Canada Civil Aviation
(TCCA), Airworthiness Directive (AD), CF−2016−40.
The access and time required to perform this modification are minimal, and we
therefore recommend you perform it at the earliest opportunity.
E. Approval
The technical content of this Service Bulletin has been approved under the
authority of Transport Canada Civil Aviation (TCCA) Design Approval Organization
(DAO) No. DAO #93−Q−02.
NOTES: 1. The technical content of this Service Bulletin is accepted by the FAA
under the Canada/USA bilateral Aviation Safety Agreement.
2. The technical content of this Service Bulletin is accepted by  EASA
under the Canada/EU bilateral Aviation Safety Agreement.
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 2 of 11

### Page 5

F. Manpower
NOTES: 1. The man−hours given are to help you schedule the tasks given in this
Service Bulletin. The estimates are for direct labor performed by an
experienced crew and do not include the time for familiarization,
planning, aircraft preparation in hangar such as towing and
positioning of scaffolds, removal of interior furnishings, repainting,
supervision and inspection.
For more information related to the manpower estimates, refer to SB
605−00−002.
2. This Service Bulletin may require consumable materials that have
specific curing times (refer to Paragraph 3). The accumulated curing
time is not included in the man−hours and should be considered for
planning purposes before you schedule this Service Bulletin.
3. Labor hours are based on the fact that the modification will be done at
the next scheduled maintenance task or inspection (e.g. 800 or 1600
hour inspection, or next A−check, etc.). Therefore no man−hours are
allotted to prepare the aircraft for maintenance or to prepare for this
Service Bulletin.
2 man−hours are necessary to do this modification.
The labor required to do this Service Bulletin is at no cost for aircraft that were in
new aircraft warranty at the time of release of this Service Bulletin (Basic Issue) if:
1. the work is done at Bombardier Business Aviation Services (BBAS) or
Authorized Service Facilities (ASF), and
2. this Service Bulletin is scheduled in less than 48 months from its release date
(Basic Issue).
G. Material − Cost and Availability
The Kit 605K33−005 in Paragraph 3.A. and the parts in Paragraph 3.B. are
necessary to do this modification.
KIT NO. PRICE
605K33−005
Please contact Bombardier Aerospace
Parts Services, in Montreal, for delivery
lead times and confirmation of prices.
This kit and parts are available at no cost for aircraft that were in new aircraft
warranty at the time of release of this Service Bulletin (Basic Issue) if:
− a no−charge purchase order is sent to Bombardier Aerospace in less than 48
months (unless otherwise specified in the BRB Minutes), from this Service
Bulletin release date (Basic Issue).
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 3 of 11

### Page 6

For those aircraft in new aircraft warranty at the time of Service Bulletin distribution,
Smart Parts Plus does not pay for the kit and parts at any time.
For those aircraft out of new aircraft warranty at the time of Service Bulletin
distribution, Smart Parts Plus pays for the kit and parts for up to 12 months from the
Service Bulletin distribution date (Basic Issue).
H. Tooling
The equipment and tools listed below are necessary to do this modification:
GSE REFERENCE NO. PART NO. DESCRIPTION
− AMP90300−2 (orequivalent) Crimping Tool
NOTES: 1. Refer to the CL−605 Illustrated Tool and Equipment Manual to make
sure that you use the correct equipment configuration.
2. Refer to the Liability Statement in the ITEM for acceptable GSE
equivalents.
3. This list is provided for a quick reference. In case of discrepancy
between this list and the tool called out in the SPM−WM, Chapter 20,
then the tool called in the SPM−WM will prevail. Other approved
alternative tools are acceptable and can also be used.
I. Weight and Balance
No change.
J. Electrical Load Data
No change.
K. References
− Bombardier Aerospace, Restriction and/or Special Instruction (RSI), C−4142,
Rev. −−.
− Bombardier Aerospace, Modification Summary, 600−6537, Rev. C.
− Bombardier Aerospace, Kit Drawing K604−51046, Rev. B.
− CL−605 Aircraft Maintenance Manual (AMM), Chapters 6, 24 and 33.
− CL−605 Standard Practices Manual (SPM), Chapter 20.
− Transport Canada Civil Aviation (TCCA), Airworthiness Directive (AD),
CF−2016−40.
L. Other Publications Affected
− None.
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 4 of 11

### Page 7

M. Equivalent Service Bulletins
− For the Challenger 604 aircraft, use SB 604−33−007.
− For the Challenger 650 aircraft, use SB 650−33−001.
2. ACCOMPLISHMENT INSTRUCTIONS
NOTES: 1. All TASKs given in the procedures that follow are from the CL−605 Aircraft
Maintenance Manual (AMM) unless otherwise specified.
2. All references made to zones, access panels and/or doors, are from the
CL−605 AMM, Chapter 6.
A. Aircraft Setup
NOTE: The steps in the Aircraft Set−Up section of this Service Bulletin are
recommended steps. The steps give a recommendation to get access to
the work area. This recommendation is to give a safe work area and to
minimize possible damage to surrounding aircraft parts. Alternative steps
can be used at the operator’s discretion.
WARNING: OBEY ALL THE SAFETY PRECAUTIONS WHEN YOU DO
MAINTENANCE ON OR NEAR ELECTRICAL/ELECTRONIC
EQUIPMENT. IF YOU DO NOT OBEY THE SAFETY
PRECAUTIONS, YOU CAN CAUSE INJURY TO PERSONS AND
DAMAGE TO THE EQUIPMENT.
(1) Obey all electrical/electronic safety precautions. Refer to
AMM 24−00−00−910−801
(2) Open and tag the circuit breaker that follows:
CB PANEL CB NO. NAME ZONE
CBP−4 A13 LIGHTS FLOOD FS230R
B. Modification
NOTE: If it is not possible to complete all the instructions in this Service Bulletin
because of the configuration of the aircraft, submit an SRPSA for analysis
and to get an approved disposition to complete this Service Bulletin.
(1) Remove the floodlight fixtures DS3LA on pilot side and DS7LA on copilot side.
Refer to kit drawing K604−51046. Do the steps that follow for both floodlight
fixtures DS3LA and DS7LA:
(2) Remove and keep washer NAS1149DN816J or AN960JD9L, (qty. 2), floodlight
assy 2LA006913, (qty. 1), and holder assy 601R59058−1, (qty. 1).
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 5 of 11

### Page 8

(3) Remove contact socket from the connector 1−480698−0. Cut the contact
socket from wire (remove minimal wire length). Remove and discard screw
MS35206−243, (qty. 2) and plastic connector 1−480698−0, (qty. 1).
NOTE: It is acceptable to remove the pins from the connector if they are not
per Note 9 of Kt Drawing K604−51046.
(4) Remove and keep the white fiberglass protective tubing from fixtures wiring
−leads. Refer to SPM, Chapter 20−14−00 and to to Kit Drawing K604−51046.
(5) Trim gasket K604−51046−3 to fit and follow holder assy 601R59058−1 contour
outlines. Refer to IPC, Chapter 33.
(6) Cut a piece of shrinkable tubing six inches long and install it over the wiring as
follows:
(a) If there is no shrinkable tubing installed over the wiring, install six inches of
shrinkable tubing Part No. M23053/5−104−9, covering the wires on the
light assembly side, or
(b) If there is tubing installed over the wiring, add as necessary (maximum 6
inches long total lenght) shrinkable tubing, Part No. M23053/5−105−9 to
overlap minimum one inch long the existing tubing, after you perform the
step 2.B.(7).
(7) Install gasket K604−51046−3 onto rear face of holder assy 601R59058−1. Pull
floodlight cable through pass−through hole and make sure that existing
heat−shrinkable tube extends on both sides of the gasket.
(8) Re−install the white fiberglass protective tubing.
NOTE: Make sure that the white fiberglass protective tubing overlaps the new
installed shrinkable tubing. Trim the tubing if necessary.
(9) Install the new contact socket, Part No. 350689−7 to wires with crimping tool
AMP90300−2 (or equivalent). Refer to SPM, Chapter 20.
(10) Install the crimped contact socket into the connector 1−480698−0.
(11) Brush lightly with alcohol the floodlight assembly to remove any presence of
dirt, lint or corrosion. Refer to SPM, Chapter 20.
(12) Use the new screws MS35206−331 and install the floodlight fixtures DS3LA on
pilot side, and DS7LA on copilot side. Refer to AMM 33−11−01−400−801.
C. Testing
(1) Remove the tags and close the circuit breakers that follow:
CB PANEL CB NO. NAME ZONE
CBP−4 A13 LIGHTS FLOOD FS230R
(2) Do the operational test of the floodlight system. Refer to
AMM 33−11−00−710−801.
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 6 of 11

### Page 9

D. Close−out
NOTE: The steps in the Close−Out section of this Service Bulletin, except for the
return−to−service tests, are recommended steps. The steps give a
recommendation to install components removed during the Aircraft
Set−up. This recommendation is to make sure that the aircraft is safe and
ready to return to service. Alternative steps can be used at the operator’s
discretion.
(1) Remove all tools, equipment and unwanted materials from the aircraft.
E. Recording
When this Service Bulletin is completed, make an entry in the aircraft log and send
the attached Incorporation Notice to Bombardier Business Aircraft Customer
Services (BBACS).
In an effort to improve the quality of our technical communications, we are
requesting your feedback. Please take a moment to fill out our easy on−line Service
Bulletin survey:
http://csefeedback.aero.bombardier.com
3. MATERIAL INFORMATION
A. Kits
Kit 605K33−005 is necessary to do this Service Bulletin and contains the parts that
follow:
NEW PART NO. QTY ITEM USED PARTNO. INSTRUCTIONS-DISPOSITION
350689−7 4 Contact,Socket − −
K604−51046−3 2 Gasket Seal − −
M23053/5−105−9 2
Heat
Shrinkable
Sleeving
− −
MS35206−331 4 Screw − −
NOTES: 1. In case of discrepancy between this list and the Service Bulletin Kit
Parts List contained in the respective kit, then the later list prevails.
2. The actual quantity for some of the hardware contained in the kit can
be greater than the amount shown in the table as these items are
supplied in prepackaged quantities.
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 7 of 11

### Page 10

B. Parts
The parts that follow are necessary to do this Service Bulletin and are available
from Bombardier Aerospace Parts Services, Montreal:
NEW PART NO. QTY ITEM USED PARTNO. INSTRUCTIONS- DISPOSITION
1−480698−0 2 Plastic Plug,Panel Mount − −
M23053/
5−104−9 2
Heat
Shrinkable
Sleeving
− −
NOTE: The part numbers for the items listed above are subject to change without
revision to this Service Bulletin. In case of discrepancy between this list
and any other list, the Illustrated Parts Catalog prevails and shall be used
to determine the latest part number.
C. Material
No materials required.
D. Publications
No publications required.
MODEL CL−600−2B16
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 8 of 11

### Page 11

K604−51046 B−S −S1−PL 
MODEL CL−600−2B16
PL K604−51046 − Kit− Cockpit Floodlight Gasket Installation to Prevent Water Ingress
(Sheet 1 of 2, Rev. B)
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 9 of 11

### Page 12

K604−51046 B−S −S2−PL 
MODEL CL−600−2B16
PL K604−51046 − Kit− Cockpit Floodlight Gasket Installation to Prevent Water Ingress
(Sheet 2 of 2, Rev. B)
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 10 of 11

### Page 13

K604−51046 B 
K604−51046 − Kit − Cockpit Flodlight Gasket Installation to Prevent Water Ingress
(Sheet 1 of 1, Rev. B)
Basic Issue: Sep 29/2015
Revision 02: Oct 02/2017
605−33−005
Page 11 of 11

### Page 14

605−33−005 Rev. 02 Oct 02/2017
MODIFICATION − FLOODLIGHTING PANEL − COCKPIT FLOODLIGHT
GASKET INSTALLATION TO PREVENT WATER INGRESS
In an effort to improve the quality of our technical communications, we are replacing the
standard Service Bulletin Evaluation Form with an on−line Service Bulletin Survey
and we are requesting your feedback. Please take a moment to fill out our easy on−line
Service Bulletin survey at:
http://csefeedback.aero.bombardier.com
SERVICE BULLETIN EVALUATION FORM
(Your ideas will help us provide better bulletins)
SERVICE BULLETIN: ISSUE: DATED:
TITLE:

### Page 15

SERVICE BULLETIN INCORPORATION SHEET − "605−33−005"
Upon completion of the Service Bulletin, please fill−in, fax to
(514) 855−8798 or e−mail to Fracas at fracas.montreal@aero.bombardier.com
If your aircraft is registered on CAMP and you are reporting to them,
please do not send the incorporation sheet to Bombardier. If your aircraft
is on another tracking system, please contact Bombardier to make
arrangements for automated data submission.
605−33−005 02
COMPLIED WITH
YES    NO    N/A
Actual hours to accomplish Service Bulletin:
* NOTES:
Aircraft Serial No. Aircraft Reg. No.
Airframe Hours: Airframe Landings
S.B. Incorporation Date Service Order No.
Facility incorporating S.B.
Name Signature Date
BOMBARDIER
SUBMISSION
Service Bulletin
Number
Rev. * Parts
Completed
Remarks/Reason
1. Where the Service Bulletin is divided into a number of parts (e.g., PARTS A,
B, C, D, etc.) which can be carried out separately, indicate only those parts
completed at this time.
2. For repetitive checks (usually PART A) only the initial check should be
reported unless otherwise stated in the Service Bulletin.
3. When more than one part is carried out at the same time, each part should
be reported.
(dd/mm/yy)
Signature not required if sent by E−Mail (dd/mm/yy)

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