TITLE NAVIGATION - RADIO ALTIMETER CONVERTER UPGRADE EFFECTIVITY MODEL SERIAL NUMBERS 525-0360 thru -0515 The equivalent of this service bulletin has been incorporated on production airplanes -0516 and On. NOTE: If this service bulletin is to be accomplished near a Collins Repair Facility, the 622-7209-002 Radio Altimeter Converter may be taken to a Collins Repair Facility to accomplish Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags. Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags, will convert the 622-7209-002 Radio Altimeter Converter to a 622-7209-003. Otherwise order an exchange 622-7209-003 Radio Altimeter Converter from Cessna. REASON To correct the radio altimeter (RA) flash on the primary flight display (PFD). DESCRIPTION This service bulletin provides parts and instructions to replace the radio altimeter converter. COMPLIANCE DISCRETIONARY. This service bulletin may be accomplished at the discretion of the owner, if the RA flashes on the PFD. FLIGHT CREW OPERATIONS No Change. APPROVAL FAA approval has been obtained on technical data in this publication that affects airplane type design. This information shall be considered an amendment to the Cessna Manufacturer s Maintenance Manual and should be accomplished within the specified time requirement. Page 1 of 5 To obtain satisfactory results, procedures specified in this publication must be accomplished in accordance with accepted industry maintenance practices and prevailing government regulations. Cessna Aircraft Company is not responsible for the quality of work performed in complying with the requirements herein if the work is accomplished at other than a Cessna-owned Citation Service Center. Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, Kansas 67277, U.S.A. 1-316-517-6000, Telefax 1-316-517-8500 COPYRIGHT 2003
MANPOWER WORK PHASE MAN-HOURS Modification * MATERIAL - Cost and Availability PART NUMBER AVAILABILITY COST * * * Refer to the attached Service Bulletin Supplemental Data sheet for man-hours, material cost and availability, and warranty information. CHANGE IN WEIGHT AND BALANCE None REFERENCES Cessna Model 525 Maintenance Manual PUBLICATIONS AFFECTED Cessna Model 525 Illustrated Parts Catalog 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" written on them. 2. Remove the nose radome. (Refer to the Maintenance Manual, Chapter 53, Nose Radome - Maintenance Practices.) 3. (Refer to Figure 1, Sheet 1, Detail A.) Remove the 622-7209-002 Radio Altimeter Converter. (Refer to the Maintenance Manual, Chapter 34, Collins Pro Line 21 Radio Sensor System - Removal/Installation.) NOTE: If this service bulletin is to be accomplished near a Collins Repair Facility, the 622-7209-002 Radio Altimeter Converter may be taken to a Collins Repair Facility to accomplish Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags. Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags, will convert the 622-7209-002 Radio Altimeter Converter to a 622-7209-003. Otherwise order the 622-7209-003 Radio Altimeter Convert from Cessna. 4. (Refer to Figure 1, Sheet 1, Detail A.) Install the 622-7209-003 Radio Altimeter Converter. (Refer to the Maintenance Manual, Chapter 34, Collins Pro Line 21 Radio Sensor System - Removal/Installation.) 5. Remove the maintenance warning tags and connect external power to the airplane. Page 2
6. Do a test of radio altimeter. A. Set the minimum altitude to 200 feet on the pilot s PFD. B. Press the MENU SET button in the middle of the PUSH MENU ADVANCE knob until the cursor box is over the minimum altitude numbers. C. Set the minimum safe altitude to 200 feet. D. Push the R LSK 1 button on the PFD to turn on the radio altimeter. E. Cover the receiving (aft) radio altimeter antenna with a piece of aluminum. NOTE: Covering the receiving (aft) radio altimeter antenna will simulate that the airplane is above 2500 feet altitude. NOTE: The operational check will require two technicians to complete. One must observe the PFD display and the other will cover and remove the aluminum sheet from the receiving (aft) radio altimeter antenna. F. Remove the aluminum sheet from the radio altimeter antenna. G. Monitor the PFD display. H. The radio altimeter should count down from 2500 feet past the 200 feet minimum to zero feet. I. Make sure that the aural alert sounds and the visual alert appears on the PFD. 7. Remove external power from the airplane. 8. Install the nose radome. (Refer to the Maintenance Manual, Chapter 53, Nose Radome - Maintenance Practices.) 9. 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, PO Box 7706, Wichita, KS 67277. Page 3
MATERIAL INFORMATION NOTE: The parts included in this service bulletin cover installation for one airplane. NEW P/N QUAN- TITY 1 Kit, consisting of the following parts: 1 Instructions KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION NOTE: In addition to the above kit the following part may be required. Airplanes that are in close proximity to a Collins Repair Facility may take the 622-7209-002 Radio Altimeter Converter to Collins to have Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags, incorporated to make the 622-7209-003 Radio Altimeter Converter. NEW P/N QUAN- TITY KEY WORD OLD P/N INSTRUCTIONS/ DISPOSITION 622-7209-003 1 Radio Altimeter Converter 622-7209-002 Return to the nearest Collins Repair Facility or to Cessna to exchange for upgraded units NOTE: International Owner/Operators: The existing 622-7209-002 Radio Altimeter Converter may be returned to Cessna Aircraft Company, Citation Parts Distribution, 7121 Southwest Boulevard, Wichita, Kansas 67215, USA, and exchanged for upgraded units. Due to limited availability, please expedite the return of the removed part. NOTE: Domestic Owner/Operators: The existing 622-7209-002 Radio Altimeter Converter is to be returned to Cessna Aircraft Company, Citation Parts Distribution, 7121 Southwest Boulevard, Wichita, Kansas 67215, USA, upgraded to the current mod level and returned to the owner/operator for installation. This option will require advance scheduling with Citation Parts Distribution, Telephone number 1-800-835-4000 (Domestic) or 316-517-8079 (International) or Telefax 316-517-7711. We estimate a turn around time of approximately 7 days. Page 4
Figure 1. Radio Altimeter Converter Upgrade (Sheet 1) Page 5
TITLE SUPPLEMENTAL DATA NAVIGATION - RADIO ALTIMETER CONVERTER UPGRADE EFFECTIVITY MODEL SERIAL NUMBERS 525-0360 thru -0515 The equivalent of this service bulletin has been incorporated on production airplanes -0516 and On. NOTE: If this service bulletin is to be accomplished near a Collins Repair Facility the 622-7209-002 Radio Altimeter Converter may be taken to a Collins Repair Facility to accomplish Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags. Service Bulletin 501, Reduce Nuisance Radio Altimeter Flags, will convert the 622-7209-002 Radio Altimeter Converter to a 622-7209-003. Otherwise order an exchange 622-7209-003 Radio Altimeter Converter from Cessna. MANPOWER WORK PHASE MAN-HOURS Modification 2.0 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. Page 1 of 2 To obtain satisfactory results, procedures specified in this publication must be accomplished in accordance with accepted industry maintenance practices and prevailing government regulations. Cessna Aircraft Company is not responsible for the quality of work performed in complying with the requirements herein if the work is accomplished at other than a Cessna-owned Citation Service Center. Cessna Aircraft Company, Citation Marketing Division, P.O. Box 7706, Wichita, Kansas 67277, U.S.A. 1-316-517-6000, Telefax 1-316-517-8500 COPYRIGHT 2003
SUPPLEMENTAL DATA WARRANTY CREDIT PROGRAM Eligible Citations exhibiting conditions described in this service bulletin may demonstrate improved operation by incorporation of the work described herein. This bulletin is to be accomplished at the discretion of the owner. Eligible airplanes may qualify for parts and labor coverage, as described below. Eligibility: Parts Coverage: Labor Coverage: Credit Application: Expiration: Jul 31/2005 Citations identified within the serial number effectivity of this service bulletin which are within the five year warranty period on the original issue date of this bulletin. Authorized Citation Service Facilities, operators, or other maintenance facilities may submit a Citation Credit Claim Form for the parts required to accomplish this bulletin. 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. If actual labor differs from coverage guidelines, claim actual labor and detail all discrepancies. 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 Citation Parts Distribution should be forwarded to: Citation Warranty Administration 7121 Southwest Boulevard Wichita, KS 67215 USA Page 2