Revision 1 REVISION TRANSMITTAL SHEET This sheet transmits Revision 1 to, which: A. Changes the test for the operation of the switch installation. B. Adds steps to drill a hole in the cabin entrance door upper trim for the electrical wiring. NOTE: This revision replaces the original issue of in its entirety. NOTE: Change bars and pointing hands are not used in this publication to denote revised material. This transmittal sheet provides a complete description of the changes made by this revision, except for editorial changes. REVISION COMPLIANCE NO EFFECT. Airplanes previously modified by this service bulletin are not affected by this revision. SUMMARY OF REVISIONS Original Issue Nov 6/2008 Revision 1 Oct 2/2009
TITLE DOORS - CABIN ENTRY DOOR HANDLE POSITION SWITCH INSTALLATION EFFECTIVITY MODEL SERIAL NUMBERS 525 (CitationJet) -0001 thru -0359 525 (CJ1) -0360 thru -0558 525 (CJ1+) -0600 thru -0657 REASON The equivalent of this service bulletin has been incorporated on production airplanes -0658 and On. EASA requires an annunciation if the cabin entry door handle is not properly stowed. DESCRIPTION This service bulletin provides parts and instructions to add a switch, striker plate and associated wiring for the cabin entry door handle position annunciator. COMPLIANCE OPTIONAL. This service bulletin can be accomplished at the discretion of the owner. A service bulletin published by Cessna Aircraft Company 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 bulletin, including the intent therein. 2) The mechanic must correctly use and install all applicable parts supplied with the service bulletin kit. Only with written authorization from Cessna Aircraft Company 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 bulletin only as approved and published. 4) The mechanic or airplane owner must apply the information in the service bulletin only to aircraft serial numbers identified in the Effectivity section of the bulletin. 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 Cessna Aircraft Company is authorized to make or apply any changes to a Cessna-issued service bulletin, service letter, or flight manual supplement without prior written consent from Cessna Aircraft Company. Cessna Aircraft Company is not responsible for the quality of maintenance performed to comply with this document, unless the maintenance is accomplished at a Cessna-owned Citation Service Center. FLIGHT CREW OPERATIONS Refer to the attached Flight Crew Operations Summary. Revision 1 - Oct 2/2009 Page 1 of 19 Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-6000, Fax 1-316-517-8500 COPYRIGHT 2008
APPROVAL Cessna received FAA approval for the technical data in this publication that changes the airplane type design. This information is an amendment to the applicable maintenance manual. MANPOWER WORK PHASE MAN-HOURS Modification * MATERIAL - Cost and Availability PART NUMBER AVAILABILITY COST -0 * * -1 * * * Refer to the Manpower, Material - Cost and Availability, and Warranty sections in the attached Service Bulletin Supplemental Data sheet. TOOLING None CHANGE IN WEIGHT AND BALANCE KIT NUMBER WEIGHT INCREASE RESULTANT MOMENT/100 MOMENT -0 +0.34 pounds +45.51 inch-pounds +0.46 inch-pounds -1 +0.38 pounds +51.88 inch-pounds +0.52 inch-pounds REFERENCES Cessna Model 525 Maintenance Manual Cessna Model 525 Wiring Diagram Manual (525-0001 through 525-0599) Cessna Model 525 Wiring Diagram Manual (525-0600 and On) PUBLICATIONS AFFECTED Cessna Model 525 Illustrated Parts Catalog Cessna Model 525 Wiring Diagram Manual (525-0001 through 525-0599) Cessna Model 525 Wiring Diagram Manual (525-0600 and On) Revision 1 - Oct 2/2009 Page 2
ACCOMPLISHMENT INSTRUCTIONS 1. Prepare the airplane for maintenance. A. Make sure that all switches are in the OFF/NORM position. B. Disconnect electrical power from the airplane. (1) Disconnect the airplane battery. (2) Disconnect external electrical power. C. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" writtenonthem. 2. Get access to the striker plate and wire bundles in the cabin door. A. Swing the inner door handle to the OPEN position to expose the striker plates. B. Remove and discard the current striker plate and the screws from the door frame. Keep all other attaching hardware. 3. (Refer to Figure 1, Sheets 1, 2, 3, 4, 5, 6, 7, 8, and 9.) Modify the wiring as shown. NOTE: The wiring is secured to the door chain and both are wrapped with heat shrink tubing. At the fuselage end of the chain, the wire is routed into the left side fuselage and forward to the annunciator panel. A. Remove avionics components as necessary to get access to the wires. (Refer to the applicable sections of the Model 525 Maintenance Manual, Chapter 34, Navigation.) B. Remove interior from the cockpit as necessary to get access to the wire bundles. (Refer to the applicable sections of the Model 525 Maintenance Manual, Chapter 25, Equipment/Furnishings.) C. Attach the LMD5001P Relay Module to the wire bundle with S2209-5 Tie Straps. NOTE: Put the relay module near the PI003 connector and attach it to the wire bundle with tie straps. 4. Install the B7070 Switch. A. Remove the cabin entrance door upper trim. (Refer to the Model 525 Maintenance Manual, Chapter 25, Headliner and Sidewall - Maintenance Practices.) B. (Refer to Figure 2, View B-B and View C-C.) Install two MS35489-6 Grommets. (1) Measure and mark hole locations for two 0.438 inch diameter holes as shown. (2) Drill the 0.438 inch diameter holes in the channel and brace as shown. (3) Install the cabin entrance door upper trim. (Refer to the Model 525 Maintenance Manual, Chapter 25, Headliner and Sidewall - Maintenance Practices.) (4) Match drill one 0.438 inch diameter hole in the cabin entrance door upper trim. (5) Remove the cabin entrance door upper trim. (Refer to the Model 525 Maintenance Manual, Chapter 25, Headliner and Sidewall - Maintenance Practices.) (6) Deburr the holes that were drilled. (7) Install the MS35489-6 Grommets in the channel and brace. C. (Refer to Figure 2, View C-C.) Install one S1741-1 Anchor. (1) Measure and mark a hole location for one Number 21 (0.159 inch diameter) hole on the brace. (2) Drill the Number 21 (0.159 inch diameter) hole in the brace. (3) Deburr the hole in the brace. (4) Attach the S1741-1 Anchor to the brace with one S3899A5-5N Rivet. Revision 1 - Oct 2/2009 Page 3
D. Install the B7070 Switch as shown. (1) (Refer to Figure 2, Detail A and Detail B.) Drill one 0.500 inch diameter through the shims, rub plate and the 5514776 Trim Installation. (2) Deburr the hole. (3) (Refer to Figure 2, Detail A.) Install the B7070 Switch in the 6397000-24 Striker Plate with the kept hardware. (4) Shim the switch as required using NAS620A416L Washers to make sure the switch activates by door handle trigger. (5) (Refer to Figure 2, Detail A.) Attach the 6397000-24 Striker Plate to the door frame with two CM3767-1 Screws. (6) Route the wires through the cabin entrance door upper trim, MS3489-6 Grommets, and S1741-1 Anchor. (7) Connect the electrical splices to the switch. E. Install the cabin entrance upper door trim. (Refer to the Model 525 Maintenance Manual, Chapter 25, Headliner and Sidewall - Maintenance Practices.) 5. Install the interior that was removed. (Refer to the applicable sections of the Model 525 Maintenance Manual, Chapter 25, Equipment Furnishings.) 6. Install any avionics components that were removed. (Refer to the applicable sections of the Model 525 Maintenance Manual, Chapter 34, Navigation.) 7. Restore electrical power to the airplane. 8. Do functional tests of any avionics components that were removed. (Refer to the applicable sections of the Model 525 Maintenance Manual, Chapter 34, Navigation.) 9. Do an operational test of the handle not stowed switch. A. (Airplanes -0001 thru -0558) Do a test of the switch. (1) Close the cabin door. (2) Make sure that the DOOR NOT LOCKED annunciator is on when the inner door handle is in thelockedposition. (3) Swing the inner door handle to the STOWED position. (4) Make sure the DOOR NOT LOCKED annunciator is off. (5) Swing the inner door handle to the OPEN position. (6) Make sure the DOOR NOT LOCKED annunciator on the annunciator panel illuminates. B. (Airplanes -0600 thru -0657) Do a test of the switch. (1) Close the cabin door. (2) Make sure that the CABIN DOOR annunciator is on when the inner door handle is in the locked position. (3) Swing the inner door handle to the STOWED position. (4) Make sure the CABIN DOOR annunciator is off. (5) Swing the inner door handle to the OPEN position. (6) Make sure the CABIN DOOR annunciator on the annunciator panel illuminates. 10. Remove the maintenance warning tags. Revision 1 - Oct 2/2009 Page 4
11. Make sure the flight crew receives the Flight Crew Operations Summary, which shows the operational changes that are a result of the accomplishment of this service bulletin. 12. Record that this service bulletin has been completed. A. Complete a Maintenance Transaction Report. B. Put a copy of the completed Maintenance Transaction Report in the airplane logbook. C. Send a copy of the completed Maintenance Transaction Report to: CESCOM, P.O. Box 7706, Wichita, KS 67277. MATERIAL INFORMATION Order the kit below to install this modification. Airplanes -0001 thru -0558 must order the following kit. NEW P/N QUAN- TITY -0 1 Kit, consisting of the following parts: B7070 1 Switch CM3767-1 2 Screw LMD4001S 1 Connector LMD4120-96LD 1 Socket LMD5001P 1 Relay Module LMS01TTL 1 Splice Connector MS35489-6 2 Grommet 1SC017-AC087) M81044/12-22-9 8 inches Electrical Wire (Marked 1PI053-8PI053) 2JC085-GC010) 62PI003-8PI053) 41PI003-2PI053) 72PI003-4PI053) 1PC085-AC086) 5SC017-AC086) 1JC085-AC053) KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION Revision 1 - Oct 2/2009 Page 5
NEW P/N QUAN- TITY 2PC085-AC087) M81714/65-22-1 2 Splice M81714/65-22-2 4 Splice NAS620A416L 4 Washer S1741-1 1 Anchor S2209-5 10 Tie Strap S2216-3 2 Receptacle S2216-4 2 Socket S3899A5-5N 1 Rivet P612141 24 inches Heat Shrink Tubing P612146 50 inches Heat ShrinkTubing 03-06-2023 1 Connector 6397000-24 1 Striker Plate 1 Instructions KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION Airplanes -0600 thru -0657 must order the following kit. NEW P/N QUAN- TITY -1 1 Kit, consisting of the following parts: B7070 1 Switch CM3767-1 2 Screw LMD4001S 1 Connector LMD4120-96LD 1 Socket LMD5001P 1 Relay Module LMS01TTL 1 Splice Connector MS35489-6 2 Grommet 10PI019-8PI059) M81044/12-22-9 173 inches Electrical Wire (Marked 2PI059-AC053) 1PI019-4PI059) 2JC085-GC010) KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION Revision 1 - Oct 2/2009 Page 6
NEW P/N QUAN- TITY M81044/12-22-9 8 inches Electrical Wire (Marked 1PI059-8PI059) 1PC085-AC903) 5SC017-AC903) 1SC017-AC905) 2PC085-AC905) 1JC085-AC053) M81714/65-22-1 2 Splice M81714/65-22-2 3 Splice NAS620A416L 4 Washer S1741-1 1 Anchor S2209-5 10 Tie Strap S2216-3 2 Pin S2216-4 2 Socket S3899A5-5N 1 Rivet P612141 24 inches Heat Shrink Tubing P612146 50 inches Heat Shrink Tubing 03-06-1023 1 Receptacle 03-06-2023 1 Connector 6397000-24 1 Striker Plate 1 Instructions KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION Revision 1 - Oct 2/2009 Page 7
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 1) Revision 1 - Oct 2/2009 Page 8
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 2) Revision 1 - Oct 2/2009 Page 9
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 3) Revision 1 - Oct 2/2009 Page 10
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 4) Revision 1 - Oct 2/2009 Page 11
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 5) Revision 1 - Oct 2/2009 Page 12
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 6) Revision 1 - Oct 2/2009 Page 13
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 7) Revision 1 - Oct 2/2009 Page 14
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 8) Revision 1 - Oct 2/2009 Page 15
Figure 1. Cabin Entry Door Handle Position Switch Wiring Modification (Sheet 9) Revision 1 - Oct 2/2009 Page 16
Figure 2. Cabin Entry Door Handle Position Switch Installation (Sheet 1) Revision 1 - Oct 2/2009 Page 17
Figure 2. Cabin Entry Door Handle Position Switch Installation (Sheet 2) Revision 1 - Oct 2/2009 Page 18
Figure 2. Cabin Entry Door Handle Position Switch Installation (Sheet 3) Revision 1 - Oct 2/2009 Page 19
ATTACHMENT FLIGHT CREW OPERATIONS SUMMARY This summary provides additional information for the flight crew regarding operational changes as a result of accomplishment of this service bulletin. Please remove this summary from the service bulletin and give it to the flight crew. This summary is informational only and does not supersede any information in the FAA-approved airplane flight manual. (Airplanes -0001 thru -0558) The amber DOOR NOT LOCKED annunciator will illuminate if the cabin entry door handle is not stowed correctly. (Airplanes -0600 thru -0657) The amber CABIN DOOR annunciator will illuminate if the cabin entry door handle is not stowed correctly.
TITLE SUPPLEMENTAL DATA DOORS - CABIN ENTRY DOOR HANDLE POSITION SWITCH INSTALLATION EFFECTIVITY MODEL SERIAL NUMBERS 525 (CitationJet) -0001 thru -0359 525 (CJ1) -0360 thru -0558 525 (CJ1+) -0600 thru -0657 The equivalent of this service bulletin has been incorporated on production airplanes -0658 and On. MANPOWER WORK PHASE Modification MAN-HOURS As Required MATERIAL - Cost and Availability PART NUMBER AVAILABILITY COST * * * Please contact Citation Parts Distribution for current cost and availability of parts listed in this service bulletin. Phone at 1-800-835-4000 (Domestic) or 1-316-517-7542 (International). Send Email to: citationparts@cessna.textron.com or telefax at 1-316-517-7711. Based on availability and lead times, parts may require advanced scheduling. In cases where the required part(s) are available as exchange, order the exchange part and, upon completion, expedite the return of the removed core to avoid return penalties. Contact the Citation Parts Distribution Sales Desk for availability of exchange parts. Page1of1 Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-6000, Fax 1-316-517-8500 COPYRIGHT 2008