=, Multi-engine A | Service Bulletin February 25, 2002 MEBO2-2 TITLE DRY VACUUM PUMP AND COUPLING REPLACEMENT REQUIREMENTS EFFECTIVITY The following airplanes equipped with an engine driven dry vacuum pump (not lubricated with engine oil) or an electric standby vacuum pump: ‘Model Year Serial Numbers 7303 1982 730300001 thru 730300175 7303 1983 730300176 thru 730300257 7303 1984 730300258 thru 730300315 SIOH/ESTOH 1963 ‘310H0001 thru 310H0148 3101 1964 31010001 thru 31010200 310U/310J-1/ E310J 1965 310J0001 thru 310J0150 310K 1966 310K0210 thru 310K0245 310L. 1967 310L0001 thru 310L0207 310N 1968 310NO001 thru 310N0198 S10P/T310P «1969 310P0001 thru 310P0240 3100/7310 +1970 thru 1974 31000001 thru 31001160 S10RT310R 1975 thru 1981 310R0001 thru 310R2140 3208 1964 32080001 thru 32080045 335 1980 335-0001 thru 335-0065 336 1964 336-0001 thru 336-0195 336 633, 636 337 1965 337-0002 thru 337-0239 337A 1966 337-0240 thru 337-0305 3378 1966 337-0307 thru 337-0469 337A 1966 337-0471 thru 337-0525 337B/1337B 1967 337-0526 thru 337-0568 337B/1337B «1967 337-0570 thru 337-0755 3378/7337 337-0001, 337-0470 Page 1 of 7 To obiain saltaciory reaule, procedures spacifed in bie publication aust be accomplished in accordance with accepted methods and prevailing government reguaions. Cessna Arera Company cannot be reeponsitie for the qualty of work performed in accomplishing te Fequiremonts of is publication Cesena Areratt Company, Product Supper, PO. Bor 7708, Weis, Kansas 67277, US.A (316) 517-8800, Faint (316) 842-9006, COPYRIGHT © 2002,Page 2 3378 3370/7337 3370/3370 837E/T337E 337F T337F T397F 337F 337F 337F 3376 3376 3376 3376 3376 3376 337H/T337H 337H/T337H 337H/T337H 337H/T337H 337H/T337H 337H/T337H ‘337H/7337H ‘T337H-SP ‘T337H-SP ‘T337H-SP 73376 3376 3376 13376 13376 13376 13376 13376 P337H P337H P337H 340 340 340 340 196% 1968 1969 1970 1971 1971 1972 1972 1973 1974 1975 1976 1977 1978 1978 1979 1979 1980 1980 1979 1980 1980 1973 1974 1975 1975 1976 1977 1978 1979 1979 1980 1972 1973 1974 1975 337-M0001 thru 337-MO476 337-0756 thru 337-0978 337-0979 thru 337-1193 93701194 thru 33701316 33701317 thru 33701398 33701317 thru 33701398, 33700569 33701399 thru 33701448, 33701450 thru 33701462 33700306 33701483 thru 33701550 33701551 thru 33701606 33701607 thru 33701671, 39701672 thru 33701748 33701749 thru 33701815 33701449 33701816 thru 33701853 33701855 thru 33701874 33701875 thru 33701919 33701921 33701854 33701922 33701928 thru 33701950 33701920 33701928 thru 33701927 33701951 thru 33701955 3370001 thru P3370148 3370149 thru P3370193 3370194 thru P3370195 3370197 thru P3370225 677 3370226 thru P3370257 3370258 thru P3370292 P3370293 thru P3370318 3370319 thru P3370341 3370196 3370342 thru P3370356 ‘340-0001 thru 340-0115 340-0151 thru 340-0260 340-0301 thru 340-0370 340-0501 thru 340-0555 MEBO2-2 February 25, 20023408, 3408, 340A, 3408, 3408, 3400 3408 401 401A, 4018 4018 402 402A, 4028 4028 4028 4028 4028 4028 4028 402 4020 402 402c 402c 402c 402C 404 404 404 404 404 an Atta, ata ata 414 a4 414 MEBO2-2 February 25, 2002 1976 1977 1978 1979 1980 1981 1982 1984 1967/68 1969 19707 1972 1967/68 1969 1970/1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1984 1985 1977 1978 1979 1980 1981 1965/1966 1967/1968 1970 1971 1972 1973 1974 340A0001 thru 34000125, 34080201 thru 34040375 34080401 thru 34040562 '340A0601 thru 34040801 '340A0901 thru 34081045, 34041201 thru 34041280 34041501 thru 34041543 ‘34041801 thru 34041817 401-0001 thru 401-0322 401A0001 thru 40140132 40180001 thru 40180121 40180122 thru 40180221 402-0001 thru 402-0322 4020001 thru 40280128 40280001 thru 40280122 40280201 thru 40280249 40280301 thru 40280455, 40280501 thru 40280640 40280801 thru 40280935 40281001 thru 40281100 40281201 thru 40281250 40281301 thru 40281384 -402C0001 thru 40260125 689 40200201 thru 40260355 40200401 thru 40200528 40200801 thru 40200653 40200801 thru 40200807 402C0808 thru 402C1020 404-0001 thru 404-0136 404-0201 thru 404-0246 404-0401 thru 404-0460 404-0601 thru 404-0695 404-0801 thru 404-0859 411-0001 thru 411-0250 411-0251 thru 411-0300 414-0001 thru 414-0099 414-0151 thru 414-0175 444-0251 thru 414-0280 414-0351 thru 414-0437 414-0451 thru 414-0550 Page 3a4 1975- 414-0601 thru 414-0655, a4 1976 414-0801 thru 414-0855 ata 1977 414-0901 thru 414-0965 4at4n 1978 41440001 thru 41480121 414A 1979 41440201 thru 41400340 414a 1980 414A0401 thru 41440535 14a 1981 41480601 thru 41440680 an4a, 1982 41440801 thru 41400858 Anan, 1984 44441001 thru 4141006 414A, 1985 44441007 thru 4141212 42t 1967/1968 421-0001 thru 421-0200 42a 1969 4210001 thru 421A0158 4218 1970 421B0001 thru 42180056 4218 1971 421B0101 thru 42180147 4218 1972 42180201 thru 42180275 4218 1973 42180301 thru 42180486 4218 1974 42180501 thru 421B0665 4218 1975 42180801 thru 42180970 421c 1976 421C0001 thru 42160171, 42ic 1977 421C0201 thru 42160350 421c 1978 421C0401 thru 421C0525 421c 1979 421C0601 thru 421€0715 42ic 1980 42100801 thru 421C0910 42ic 1981 421C1001 thru 42101115, 421c 1982 42101201 thru 421C1257 42ic 1984 42101401 thru 421C1413, 42ic 1985 42101801 thru 42101807 F337E/ FT337E 1970 33700001 thru F33700024 FS7F/ FT337F 1971 33700025 thru F33700045 F337F/ FT337F 1972 33700046 thru F33700055 F337 1973 F33700056 thru 33700063 F337 1974 33700064 thru F33700071 F337G 1975 F'33700072 thru F33700076 F337G 1976 F33700077 thru F33700079 F337 197 33700080 thru F33700084 F337H 1978 33700085 thru F33700086 FTB3376, 1974 thru 1983, 783370001 thru FTB3370062 FT337GP 1973 FP33700001 thru FP33700008 FT337GP, 1974 FP33700008 thru FP33700013, MEBO2-2 Pago 4 February 25, 2002FT337GP = 1975 FP33700014 thru FP33700015 FT337GP, 1976 FP33700016 thru FP33700017 FP337GP 1977 FP33700018 thru FP33700022 FT337HP 1978 FP33700023 PURPOSE To provide replacement time requirements for engine driven dry vacuum pumps, electric standby vacuum pumps and vacuum pump drive couplings. ‘COMPLIANCE Mandatory; components shall be replaced as stated in the Accomplishment Instructions of this Service Bulletin. {An initial inspection to determine total time in service of installed applicable vacuum pumps and drive couplings shall be accomplished within the next 100 hours of operation or 12 months, whichever occurs first. ‘APPROVAL FAA approval has been obtained on technical data in this publication that affects airplane type design. For Fleims Aviation Airplanes: DGAC approval has been obtained on technical data in this publication that affects airplane type design. MAN-HOURS Not applicable MATERIAL Replacement vacuum pumps and couplings are available from Cessna Parts Distribution through an appropriate Cessna Service Station. Refer to applicable airplane illustrated Parts Catalog for replacement part numbers. The following is available from Cessna Parts Distribution through an appropriate Cessna Service Station for the suggested list price shown. Number Description Qty/Airplane Price s3346-1 Gasket {as required) $ 1.28 (VR) ea. ALL PRICES SUBJECT TO CHANGE WITHOUT NOTICE NOTE: When installing new dry vacuum pumps, use only $3346-1 or Cessna approved equivalent gaskets. Cork type gaskets and other gaskets are not approved. MEBO2-2 February 25, 2002 Page 5‘ACCOMPLISHMENT INSTRUCTIONS 1, The following are the maximum component in-service/calendar time limits. Normal on-condition requirements wil stil apply if replacement is required prior to these limits. ‘COMPONENT REPLACEMENT TIME '500 Hours of operation (See Note) "At vacuum pump replacement or 6 calendar years, whichever occurs fist. (See Note) 500 Hours of operation or 10 years of service, whichever occurs first. (See Note) OVERHAUL NO Engine Driven Dry Vacuum Pump (Not lubricated with engine oil) Engine Driven Dry Vacuum Pump Drive Coupling (Not lubricated with engine oil) Electrically Driven Standby Dry Vacuum Pumps NO NOTE: Replace engine driven dry vacuum pump not equipped with a wear indicator every 500 hours of ‘operation, oF replace according to the vacuum pump manufacturer's recommended inspection and replacement interval, whichever occurs first. For a vacuum pump equipped with a wear indicator, replace pump according to the vacuum pump manufacturer's recommended inspection and replacement intervals. If the manufacturer of the vacuum pump or the vacuum pump drive coupling has a shorter/more restrictive replacement interval, then that interval shall be used as the pump and/or drive coupling replacement interval. When installing new dry vacuum pumps, use only $3346-1 or Cessna approved equivalent gaskets. Cork type gaskets and other gaskets are not approved. 2. Make an entry in the airplane logbook stating compliance and method of compliance with this service bulletin NOTE: This information shall be considered an amendment to the Cessna Manufacturer's Service/Maintenance Manual or Instructions for continued airworthiness, and must be accomplished for ongoing airworthiness compliance as required per 14 CFR Part (FAR) 43.13. This Service Bulletin will be superseded by the next revision to the applicable airplane Service/Maintenance Manuals concerning the replacement intervals of vacuum pumps and vacuum, pump drive couplings. CREDIT Not applicable ‘MEBO2-2 Page 6 February 25, 2002OWNER NOTIFICATION On February 25, 2002 the following Owner Advisory message will be sent to applicable owners of record in MEBO2-2A. Dear Cessna Owner: This Owner Advisory is to inform you that Service Bulletin MEB02-2 has been issued to provide replacement time requirements for engine driven dry vacuum pumps, vacuum pump drive couplings and electric standby ‘vacuum pumps. MEB02-2 requires replacement of vacuum system components as follows: ‘A. Replace engine driven dry vacuum pumps not equipped with a wear indicator every 500 hours of operation, of replace according to the vacuum pump manufacturer's recommended inspection and replacement interval, whichever occurs first. B. Replace electric standby vacuum pumps not equipped with a wear indicator every 500 hours of ‘operation or 10 years, or replace according to the vacuum pump manufacturer's recommended inspection and replacement interval, whichever occurs first C. Replace engine driven vacuum pump drive couplings at vacuum pump replacement or every 6 calendar years, whichever occurs first. NOTE: For a vacuum pump equipped with a wear indicator, replace pump according to the vacuum pump manufacturer's recommended inspection and replacement intervals. NOTE: If the manufacturer of the vacuum pump or the vacuum pump drive coupling has a shorter/more restrictive replacement interval, then that interval shall be used as the pump and/or drive coupling replacement interval NOTE: When instaling new dry vacuum pumps, use only $3346-1 or Cessna approved equivalent gaskets. Cork type gaskets and other gaskets are not approved. Compliance is mandatory; components shall be replaced as stated in the Accomplishment Instructions of Service Bulletin MEBO2-2. {An initial inspection to determine total time in service of installed applicable vacuum pumps and drive couplings shall be accomplished within the next 100 hours of operation or 12 months, whichever occurs first. ‘The information contained in the referenced Cessna Service Bulletin shall be considered an amendment to the Cessna Manufacturer's Service/Maintenance Manual or Instructions for continued airworthiness, and must be ‘accomplished for ongoing airworthiness compliance as required per 14 CFR Part (FAR) 43.13. Please contact a Cessna Multi-engine Service Station for detailed information and arrange to have Cessna Service Bulletin MEB02-2 accomplished on your airplane. MEBO2-2 February 25, 2002 Page 7