Citation SERVICE BULLETIN
SB525A-33-06
REVISION TRANSMITTAL
This sheet transmits Revision 1 to SB525A-33-06 which:
A. Adds airplanes -0418 thru -0438 to the Serial Effectivity.
NOTE: This revision replaces the original issue of SB525A-33-06.
REVISION COMPLIANCE
NO EFFECT. Airplanes previously modified by this service bulletin are not affected by this revision.
LOG OF REVISIONS
Original Issue September 25, 2016
Revision 1 December 17, 2020
Original Issue - September 25, 2018 SB525A-33-06
Revision 1 - December 17, 2020 Page 1 of 1
Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800
COPYRIGHT © 2018
Citation SERVICE BULLETIN
SB525A-33-06
TITLE
LIGHTS - WING TIP LED LIGHT MODIFICATION
EFFECTIVITY
MODEL SERIAL NUMBERS
525A (CJ2) -0001 thru -0244
525A (CJ2+) -0300 thru -0416, -0418 thru -0438
NOTE: Textron Aviation-owned Service Centers are the only facilities that can complete this service
document.
REASON
Replacement parts for the existing wingtip navigation/anti-collision lights are not procurable and customers
have requested to upgrade these lights to LED.
DESCRIPTION
This service bulletin provides parts and instructions to install LED wing tip lights.
COMPLIANCE
OPTIONAL. This service document can be accomplished at the discretion of the owner.
A service document published by Textron Aviation may be recorded as completed in an aircraft log
only when the following requirements are satisfied:
1) The mechanic must complete all of the instructions in the service document, including the intent
therein.
2) The mechanic must correctly use and install all applicable parts supplied with the service
document kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt
parts be used to replace new parts.
3) The mechanic or airplane owner must use the technical data in the service document only as
approved and published.
4) The mechanic or airplane owner must apply the information in the service document only to
aircraft serial numbers identified in the Effectivity section of the document.
5) The mechanic or airplane owner must use maintenance practices that are identified as acceptable
standard practices in the aviation industry and governmental regulations.
No individual or corporate organization other than Textron Aviation is authorized to make or apply any
changes to a Textron Aviation-issued service document or flight manual supplement without prior written
consent from Textron Aviation.
Textron Aviation is not responsible for the quality of maintenance performed to comply with this document,
unless the maintenance is accomplished at a Textron Aviation-owned Service Center.
APPROVAL
Textron Aviation received FAA approval for the technical data in this publication that changes the airplane
type design.
Original Issue - September 25, 2018 SB525A-33-06
Revision 1 - December 17, 2020 Page 1 of 4
Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800
This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States
in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991
COPYRIGHT © 2018
Citation SERVICE BULLETIN
SB525A-33-06
FLIGHT CREW OPERATIONS
No Changes
CONSUMABLE MATERIAL
You must use the consumable materials that follow, or their equivalent, to complete this service document.
NAME NUMBER MANUFACTURER USE
Color Chemical Film Alodine 1201 Henkel (Parker Amchem) To protect the bare aluminum.
Treatment 32100 Stephenson Highway
Madison Heights, MI 48071
Corrosion Resistant K000574 Textron Aviation Parts Distribution To protect against corrosion.
Primer 7121 Southwest Boulevard
Wichita, KS 67215
TOOLING
No specialized tooling is required to complete this service document.
WEIGHT AND BALANCE INFORMATION
Negligible
MODEL 525A
WEIGHT CHANGE - 3.06 pounds
RESULTANT MOMENT - 893.61 inch-pounds
MOMENT/100 - 8.94 inch-pounds
REFERENCES
Cessna Model 525A Maintenance Manual
Cessna Model 525A Illustrated Parts Catalog
Cessna Model 525A Wiring Diagram Manual
ICA-525A-33-00001 Wingtip LED Lighting Update ICA Supplement
NOTE: To install the wing tip LED light modification on your airplane, you must get the engineering
documents that follow. You must use the most recent revision and all of the applicable drawing
change notices (DCN) for each engineering document.
DOCUMENT NUMBER TITLE
6397112 LED Wing Tip Mod
9190283 NAV & Anti-Collision Light Mod W/A
PUBLICATIONS AFFECTED
Cessna Model 525A Maintenance Manual
Cessna Model 525A Illustrated Parts Catalog
Cessna Model 525A Wiring Diagram Manual
ACCOMPLISHMENT INSTRUCTIONS
1. Prepare the airplane for maintenance.
A. Make sure that the airplane is electrically grounded.
B. Make sure that all switches are in the OFF/NORM position.
SB525A-33-06
Page 2 Revision 1 - December 17, 2020
Citation SERVICE BULLETIN
SB525A-33-06
C. Disconnect electrical power from the airplane.
(1) Disconnect the airplane battery.
(2) Disconnect external electrical power.
D. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT
CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" written on them.
2. Remove the current navigation and anti collision light assemblies. (Refer Cessna Engineering Drawing
6397112 and ICA-525A-33-00001 Wingtip LED Lighting Update ICA Supplement or the Model 525A
Maintenance Manual, Chapter 33, Exterior Lighting - Maintenance Practices.)
A. Remove and discard the 04-1502-1408 Power Supply.
B. Remove and discard the current left and right anti collision light assemblies.
3. Do the wiring modification. (Refer to Cessna Engineering Drawing 9190283.)
A. Do the 9190283-301 Wire Removal.
B. Install the 9190283-1 Left Wing Lights Mod WBSA and 9190283-2 Right Wing Lights Mod WBSA.
4. Install the left and right LED wing tip lights.
A. Modify the left and right wing tips. (Refer to Cessna Engineering Drawing 6397112.)
B. Do the 6397112-1 Left and 6397112-2 Wing Tip Light Installation. (Refer to Cessna Engineering
Drawing 6397112 and ICA-525A-33-00001 Wingtip LED Lighting Update ICA Supplement or the
Model 525A Maintenance Manual, Chapter 33, Exterior Lighting - Maintenance Practices.)
5. Remove the maintenance warning tags and connect the airplane battery.
6. Do a functional test of the navigation and anticollision lights. (Refer to ICA-525A-33-00001 Wingtip LED
Lighting Update ICA Supplement or the Model 525A Maintenance Manual, Chapter 33, Exterior Lighting -
Adjustment/Test.
7. Make an entry in the airplane logbook that states compliance and method of compliance with this service
document.
NOTE: Textron Aviation recommends that compliance with all service documents is reported to Camp
Systems International.
• Complete a record of compliance. (Maintenance Transaction Report, Log Book Entry, or
other record of compliance.)
• Put a copy of the completed record of compliance in the airplane logbook.
• Send a copy of the completed record of compliance to: Camp Systems International
Incorporated, 8201 East 34th Street North, Building 1100 Suite 1101 Wichita, KS 67226.
MATERIAL INFORMATION
Order the kit/parts below to install this modification.
NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/
TITY DISPOSITION
SB-CJ-NAV-LED-0 1 Kit, consisting of the following
parts:
MS21073L08 4 Nutplate
MS24694-C12 6 Screw
S1741-1 2 Anchor
SB525A-33-06
Revision 1 - December 17, 2020 Page 3
Citation SERVICE BULLETIN
SB525A-33-06
NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/
TITY DISPOSITION
6328707-7 2 PTA Light Spacer
6397112-3 2 Adapter Plate Assembly
9912679-7 1 Left Position/Anticollision
Light
9912679-8 1 Right Position/Anticollision
Light
SB525A-33-06 1 Instructions
Order the following kit/parts below in addition to the above kit.
NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/
TITY DISPOSITION
SB-CJ-NAV-LED-1 1 Kit, consisting of the following
parts:
M39029/58-364 8 Pin
TMS3/16-1.50 2 Sleeve (Marked
DPR053-GR004)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
BPR053-*NPS003)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
CPR053-WPS003)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
APR053-*MPS003)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
CPL053-WPM003)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
BPL053-*NPM003)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
DPL053-GL002)
TMSSCE3/16-2.0-9 2 Sleeve (Marked
APL053-*PM003)
9190283-1 1 Left Wing Lights Mod WBSA
9190283-2 1 Right Wing Lights Mod WBSA
* Please contact Textron Aviation Parts Distribution for current cost and availability of parts listed in this
service document. Phone at 1-800-835-4000 (Domestic) or 1-316-517-5603 (International). Send email to:
parts@txtav.com.
Based on availability and lead times, parts may require advanced scheduling.
SB525A-33-06
Page 4 Revision 1 - December 17, 2020
Citation OWNER ADVISORY
SB525A-33-06
TITLE
LIGHTS - WINGTIP LED LIGHT MODIFICATION
TO:
Aircraft Owner
REASON
Replacement parts for the existing wingtip navigation/anti-collision lights are not procurable and customers
have requested to upgrade these lights to LED.
COMPLIANCE
OPTIONAL. This service document can be accomplished at the discretion of the owner.
LABOR HOURS
WORK PHASE LABOR-HOURS
Modification As Required
MATERIAL AVAILABILITY
PART NUMBER AVAILABILITY COST
SB-CJ-NAV-LED-0 * *
SB-CJ-NAV-LED-1 * *
* Please contact Textron Aviation Parts Distribution for current cost and availability of parts listed in this
service document. Phone at 1-800-835-4000 (Domestic) or 1-316-517-5603 (International). Send email
to: parts@txtav.com.
Based on availability and lead times, parts may require advanced scheduling.
WARRANTY
None
NOTE: As a convenience, service documents are now available online to all our customers through a
simple, free-of-charge registration process. If you would like to sign up, please visit the Customer
Access link at www.txtavsupport.com to register.
SB525A-33-06
September 25, 2018 Page 1 of 1
Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800
This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States
in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991
COPYRIGHT © 2018
