Service Bulletin

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Citation SERVICE BULLETIN SB680-49-09 REVISION TRANSMITTAL This sheet transmits Revision 2 to SB680-49-09, which: A. Changes the wire marking to *EJT012 - B1KZ138 in the SB680-49-09-0 Kit. NOTE: This revision replaces the original issue of SB680-49-09 in its entirety. NOTE: This transmittal sheet provides a complete description of the changes made by this revision, except for minor editorial changes. REVISION COMPLIANCE NO EFFECT. Airplanes previously modified by this service bulletin are not affected by this revision. LOG OF REVISIONS May 4, 2011 Original Issue Revision 1 October 29, 2012 Revision 2 May 28, 2014 Original Issue - May 4, 2011 Revision 2 - May 28, 2014 SB680-49-09 Page 1 of 1 Cessna Aircraft Company, Cessna Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800 COPYRIGHT © 2011 Citation SERVICE BULLETIN SB680-49-09 REVISION TRANSMITTAL This sheet transmits Revision 1 to SB680-49-09, which: A. Adds the S3106-7 Transorb label to Figure 2 of the illustrations. B. Changes the M81824/1-2 Splice to M81824/1-1. NOTE: This revision replaces the original issue of SB680-49-09 in its entirety. NOTE: This transmittal sheet provides a complete description of the changes made by this revision, except for minor editorial changes. REVISION COMPLIANCE NO EFFECT. Airplanes previously modified by this service bulletin are not affected by this revision. LOG OF REVISIONS Original Issue Revision 1 May 4, 2011 October 29, 2012 Original Issue - May 4, 2011 Revision 2 - May 28, 2014 SB680-49-09 Page 1 of 1 Cessna Aircraft Company, Cessna Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800 COPYRIGHT © 2011 Citation SERVICE BULLETIN SB680-49-09 TITLE AUXILIARY POWER - APU GENERATOR CONTROL PCB IMPROVEMENT EFFECTIVITY MODEL SERIAL NUMBERS 680 (Citation Sovereign) -0001 thru -0309 REASON To lower the APU generator current limit to improve the reliability of the starter/generator. DESCRIPTION This service bulletin provides the parts and instructions necessary to replace the 6918630-16, 6918630-26, 6918630-31, 6918630-36, and 6918630-49 APU Control PCB Assembly (NZ204). COMPLIANCE RECOMMENDED. This service bulletin should be accomplished at a scheduled maintenance period or phase inspection. 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. APPROVAL Cessna received FAA approval for the technical data in this publication that changes the airplane type design. FLIGHT CREW OPERATIONS No Changes WEIGHT AND BALANCE INFORMATION Negligible Original Issue - May 4, 2011 Revision 2 - May 28, 2014 SB680-49-09 Page 1 of 9 Cessna Aircraft Company, Cessna 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 © 2011 Citation SERVICE BULLETIN SB680-49-09 REFERENCES Cessna Model 680 Maintenance Manual Cessna Model 680 Approved Flight Manual PUBLICATIONS AFFECTED Cessna Model 680 Illustrated Parts Catalog Cessna Model 680 Wiring Diagram Manual 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. C. 2. (1) Disconnect the airplane batteries. (2) Disconnect external electrical power. Attach maintenance warning tags to the batteries and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" on them. (For airplanes -0001 thru -0309) Remove the 6918630-16, 6918630-26, 6918630-31, 6918630-36, or 6918630-49 APU Control PCB Assembly (NZ204). A. Open the aft baggage compartment. B. Remove panel 311ABC. (Refer to the Model 680 Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description And Operation.) C. Remove the cover from the right aft power junction box. (1) 3. Unlock the DZUS fasteners that secure the cover to the right aft power junction box. D. Remove the four screws that secure the cover to the right PCB board box. E. (Refer to Figure 1, Detail B.) Remove the 6918630-16, 6918630-26, 6918630-31, 6918630-36, or 6918630-49 APU Control PCB Assembly (NZ204). (Refer to the Model 680 Maintenance Manual, Chapter 20, Electrostatic Discharge Components - Maintenance Practices.) (For airplanes -0001 thru -0274 that have not complied with SB680-26-02 Fire Protection - Baggage Fire Bottle Suppression Switch Improvement.)(Refer to Figure 2, Sheet 1.) Do the wiring modification. NOTE: Airplanes -0001 thru -0274 that have incorporated SB680-26-02 Fire Protection - Baggage Fire Bottle Suppression Switch Improvement do not need to install the relay or do the wiring modification. A. (Refer to Figure 1, View B-B.) Install the M83536/9-024 Relay and SME210-2001 Relay Socket. B. (Refer to Figure 2, Sheet 1.) Do the wiring modification. 4. (For airplanes -0001 thru -0274 that have complied with SB680-26-02 Fire Protection - Baggage Fire Bottle Suppression Switch Improvement and airplanes -0275 thru -0309)(Refer to Figure 2, Sheet 2.) Do the wiring modification. 5. Install the 6968012-7 APU Control PCB Assembly. A. (Refer to Figure 1, View A-A.) Install the 6968012-7 APU Control PCB Assembly. (Refer to the Model 680 Maintenance Manual, Chapter 20, Electrostatic Discharge Components - Maintenance Practices.) B. Install the four screws that secure the cover to the PCB board box. SB680-49-09 Page 2 Revision 2 - May 28, 2014 SERVICE BULLETIN Citation SB680-49-09 C. Install the aft power junction box cover. (1) D. Lock the DZUS fasteners that secure the cover to the aft power junction box. Install panel 311ABC. (Refer to the Model 680 Maintenance Manual, Chapter 6, Access Plates and Panels Identification - Description And Operation.) 6. Remove the maintenance warning tags. 7. (For Airplanes -0001 thru -0274 that have not complied with SB680-26-02) Move the airplane to an approved area so that the APU may be operated. WARNING: A. Make sure airplane power is off and the batteries are not connected. B. Disconnect connectors PT062 and PT078 from the HDR fire bottle (UT024) located in the tailcone. C. Disconnect connectors PN021 and PN023 from the MDR fire bottle (UN002) located in the nose. D. Reconnect the batteries and power on the aircraft. E. Start the APU. (Refer to the Model 680 Approved Flight Manual for the starting and shutdown procedures.) F. Disconnect PT060/JT060 and place a jumper wire between pins CPT060 and APT060. (1) G. Make sure that the APU shuts down. Power down the aircraft and disconnect the batteries. (1) Remove the jumper wire and connect PT060/JT060. H. Connect the batteries and power up the aircraft. I. Start the APU. (Refer to the Model 680 Approved Flight Manual for the starting and shutdown procedures.) J. Disengage circuit breaker HF013 (APU Fire Detect) in the right circuit breaker panel. (1) 8. FAILURE TO DISCONNECT CONNECTORS PT062, PT078, PN021, AND PN023 FROM THE HDR (UT024) AND MDR (UN002) FIRE BOTTLES CAN CAUSE THE FIRE BOTTLES TO DISCHARGE DURING TESTING. Make sure that the APU shuts down. K. Power down the aircraft and disconnect the batteries. L. Engage circuit breaker HF013 (APU Fire Detect) in the right CB panel. M. Connect PT062 and PT078 to the HDR fire bottle (UT024). N. Connect PN021 and PN023 to the MDR fire bottle (UN002). O. Connect the batteries and power up the aircraft. P. Start the APU. (Refer to the Model 680 Approved Flight Manual for the starting and shutdown procedures.) Q. Make sure that the APU generator is operating correctly. (Refer to the Model 680 Approved Flight Manual.) R. Make sure the APU generator amps do not exceed 300 amps during a main engine start. (Refer to the Model 680 Approved Flight Manual.) (For all Airplanes -0001 thru -0274 that have complied with SB680-26-02 and airplanes -0275 thru -309) Move the airplane to an approved area to do an APU start. A. Connect the batteries and power up the aircraft. B. Start the APU. (Refer to the Model 680 Approved Flight Manual for the starting and shutdown procedures.) Revision 2 - May 28, 2014 SB680-49-09 Page 3 Citation SERVICE BULLETIN SB680-49-09 9. C. Make sure that the APU generator is operating correctly. (Refer to the Model 680 Approved Flight Manual.) D. Make sure the APU generator amps do not exceed 300 amps during a main engine start. (Refer to the Model 680 Approved Flight Manual.) 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 C/O Camp Systems International, 8200 East 34th Street North, Building 1600 Suite 1607 Wichita, KS 67226. SB680-49-09 Page 4 Revision 2 - May 28, 2014 SERVICE BULLETIN Citation SB680-49-09 Figure 1. APU Generator Control PCB Improvement (Sheet 1) Revision 2 - May 28, 2014 SB680-49-09 Page 5 Citation SERVICE BULLETIN SB680-49-09 Figure 2. APU Generator Control Wiring Modification (Sheet 1) SB680-49-09 Page 6 Revision 2 - May 28, 2014 SERVICE BULLETIN Citation SB680-49-09 Figure 2. APU Generator Control Wiring Modification (Sheet 2) Revision 2 - May 28, 2014 SB680-49-09 Page 7 SERVICE BULLETIN Citation SB680-49-09 MATERIAL INFORMATION For airplanes -0001 thru -0274 that have not complied with SB680-26-02, order the kit below. NEW P/N QUANTITY KEY WORD SB680-49-09-0 1 Kit, consisting of the following parts: MS25036-102 1 Terminal M39029/58-363 1 Pin M39029/57-354 2 Socket M81044/12-22-9 36 Inches Electrical Wire Marked *EJT012 - B1KZ138 M81044/12-22-9 36 Inches Electrical Wire Marked B2KZ138 - 11JZ204 M81044/12-22-9 36 Inches Electrical Wire Marked X1KZ138 - 2HT229 M81044/12-22-9 36 Inches Electrical Wire Marked X2KZ138 - 30JZ208 M81824/1-1 2 Splice M83536/9-024 1 Relay S3106-4 1 Diode Assembly S3106-7 1 Transorb Assembly SME210-2001 1 Relay Socket SB680-49-09 1 Instructions OLD P/N INSTRUCTIONS/ DISPOSITION For airplanes -0001 thru -0274 that have complied with SB680-26-02 and airplanes -0275 thru -0309, order the kit below. NEW P/N QUANTITY KEY WORD SB680-49-09-1 1 Kit, consisting of the following parts: M81824/1-1 2 Splice S3106-4 1 Diode Assembly SB680-49-09 1 Instructions SB680-49-09 Page 8 OLD P/N INSTRUCTIONS/ DISPOSITION Revision 2 - May 28, 2014 SERVICE BULLETIN Citation SB680-49-09 (All airplanes) Order the part listed below to complete this service bulletin. NEW P/N QUANTITY 6968012-7 1 Revision 2 - May 28, 2014 KEY WORD OLD P/N APU Control PCB Assembly 6918630-16 6918630-26 6918630-31 6918630-36 6918630-49 INSTRUCTIONS/ DISPOSITION or or or or Return to Cessna SB680-49-09 Page 9 OWNER ADVISORY Citation SB680-49-09 TITLE AUXILIARY POWER - APU GENERATOR CONTROL PCB IMPROVEMENT TO: Cessna Aircraft Owner REASON To lower the APU generator current limit to improve the reliability of the starter/generator. COMPLIANCE RECOMMENDED. This service bulletin should be accomplished at a scheduled maintenance period or phase inspection. LABOR HOURS WORK PHASE MAN-HOURS Modification 2.0 MATERIAL AVAILABILITY PART NUMBER AVAILABILITY COST SB680-49-09-0 * * SB680-49-09-1 * * 6968012-7 * * * Please contact Cessna Service Parts & Programs 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: [email protected] 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 Cessna Service Parts & Programs Sales Desk for availability of exchange parts. SB680-49-09 Page 1 of 2 October 29, 2012 Cessna Aircraft Company, Cessna 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 © 2012 Citation OWNER ADVISORY SB680-49-09 WARRANTY This bulletin is recommended. Eligible airplanes may qualify for parts and labor coverage, as described below. Eligibility: Citations identified within the serial number effectivity of this service bulletin which are within the Five-year/5,000 hour warranty period on the original issue date of this bulletin. Parts Coverage: Cessna-owned and Cessna-authorized Citation Service Facilities, operators, or other maintenance facilities may submit a Citation Credit Claim Form for the parts required to accomplish this bulletin. Labor Coverage: Cessna-owned and Cessna-authorized Citation Service Facilities may submit a Citation Credit Claim Form for the labor necessary to accomplish this service bulletin. Please note Manpower Requirements for coverage guidelines. Credit Application: All work must be completed and the Citation Credit Claim Form submitted before the date shown below. Send the Citation Credit Claim, along with any required parts (see Material Information), to the point of purchase. Parts to be returned to Cessna Service Parts & Programs should be forwarded to: Citation Warranty Administration 7121 Southwest Boulevard Wichita, KS USA 67215 Expiration: June 30, 2013 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.cessnasupport.com to register. SB680-49-09 Page 2 October 29, 2012