TRANSMITTAL SHEET CFM INTERNATIONAL CFM56-7B SERVICE BULLETIN , REVISION 10 APRIL 14, 2014

Transcription

1 TRANSMITTAL SHEET CFM INTERNATIONAL CFM56-7B SERVICE BULLETIN , REVISION 10 OIL - GENERAL ( ) - APPROVED OILS FOR CFM56-7B ENGINES APRIL 14, 2014 This page transmits Revision 10 to CFM56-7B Service Bulletin dated September 22, 1997, Revision 1 dated March 17, 1999, Revision 2 dated October 13, 2000, Revision 3 dated July 05, 2001, Revision 4 dated August 10, 2001, Revision 5 dated June 24, 2003, Revision 6 dated July 07, 2006, Revision 7 dated July 10, 2008, Revision 8 dated May 14, 2009 and Revision 9 dated August 19, This Service Bulletin has been revised to update the approved oils and to correct the service requirements procedures. Consequently, the following paragraphs have been updated: - 1.C. Compliance and Warranty and 2.B. Tabulation of Oils, to delete the notion to use the MJO254 on brand-new engines or cleaned engines. - 1.I. References, to delete the SER reference and to add the manufacturer's internal reference document number, - 2.A. Service Requirements, to delete the oil Castrol 5000, to update the mixability and interchangeability of oils and to validate oils ASTO560 and MJO254 in the Table 1 in 2.B. Tabulation of Oils, - 3. REQUIREMENTS FOR OIL APPROVAL, to delete the reference to SER. Engines that have previously complied with this Service Bulletin are not affected. The vertical dash in the left-hand margin indicates change. A change, which does not affect the technical content, may not be highlighted in the Transmittal Sheet. This Service Bulletin is reissued in its entirety.

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3 CFM PROPRIETARY INFORMATION The information contained in this document is CFM proprietary information and is disclosed in confidence. It is the property of CFM and shall not be used, disclosed to others or reproduced without the express written consent of CFM, including, but without limitation, it is not to be used in the creation, manufacture, development, or derivation of any repairs, modifications, spare parts, design, or configuration changes or to obtain FAA or any other government or regulatory approval to do so. If consent is given for reproduction in whole or in part, this notice and the notice set forth on each page of this document shall appear in any such reproduction in whole or in part. The information contained in this document may also be controlled by U.S. export control laws. Unauthorized export or re-export is prohibited. All technical documentation and information contained herein, with respect to assembly and disassembly, cleaning, inspection methods and limits, repair methods and limits, operational limits, life limits and the like, have been developed and approved for use with engines and parts that have been manufactured and/or approved by CFM and that have been maintained in accordance with CFM technical documentation and recommendations. CFM has no contractual or legal obligation for, nor knowledge of, non-cfm-approved parts and repairs. Accordingly, this document is not intended to apply to non-cfm-approved parts and repairs. Revision 10, April 14, 2014 PAGE 1 of 13

4 1. PLANNING INFORMATION A. Effectivity CFM56-7B20, -7B20/2, -7B20/3, -7B20E CFM56-7B22, -7B22/B1, -7B22/2, -7B22/3, -7B22/3B1, -7B22E, -7B22E/B1 CFM56-7B24, -7B24/2, -7B24/B1, -7B24/3, -7B24/3B1, -7B24E, -7B24E/B1 CFM56-7B26, -7B26/B1, -7B26/B2, -7B26/2, -7B26/3, -7B26/3B1, -7B26/3B2, -7B26/3F, -7B26/3B2F, -7B26E, -7B26E/B1, -7B26E/B2, -7B26E/F, -7B26E/B2F CFM56-7B27, -7B27/B1, -7B27/B3, -7B27/2, -7B27/3, -7B27/3B1, -7B27/3B3, -7B27/3F, -7B27/3B1F, -7B27E, -7B27E/B1, -7B27E/B3, -7B27E/F, -7B27E/B1F CFM56-7B27A, -7B27A/3, -7B27AE B. Description This Service Bulletin establishes the following: (1) A listing of oils by brand name that have been approved for service. (2) A listing of oils by brand name that have been approved for Service Evaluation. (3) A listing of oils by brand name that have been approved for additional Revenue Service Evaluation. (4) An outline of the procedures required for evaluating a proposed oil so that it may be listed as approved for service. C. Compliance and Warranty Category 9. Information only. (1) It is recommended that this Service Bulletin be complied with all engines. (2) Compliance with this Service Bulletin is a condition of Engine Warranty and Material/Labor Cost Guarantees. Warranties and Material Cost Guarantees are not jeopardized by use of Service Evaluation Lubricants provided they are used in accordance with the instructions and requirements included in the applicable Service Evaluation Request and additional Service Evaluation Request. Revision 10, April 14, 2014 PAGE 2

5 NOTE: For customer using BP Turbo Oil 2197 (BP2197) or Mobil Jet Oil 254 (MJO254), the following S/Bs must be applied: CFM56-7B S/B CFM56-7B S/B (applicable until implementation of S/B ) CFM56-7B S/B D. Concurrent Requirements None. E. Reason This Service Bulletin designates the lubricating oils which are approved for use in CFM56 engines listed in 1.A. Effectivity. F. Approval The technical content of this document is approved by the FAA and under the authority of DOA No. EASA.21J.086. G. Manpower No additional man-hour is necessary to do this Service Bulletin. H. Weight and Balance Weight and balance are not changed. I. References CFM56-7B Engine Shop Manual, CFMI-TP.SM.10. Boeing /-700/-800/-900 Aircraft Maintenance Manual. CFM56-7B S/B , ENGINE - Accessory Gearbox Assembly ( ) - Introduction of New Magnetic Seal and New Sealol Seal with New O-ring Material and Rework of Old Magnetic Seal and Old Sealol Seal to the New One. CFM56-7B S/B , OIL - General ( ) - Oil Consumption Monitoring. Revision 10, April 14, 2014 PAGE 3

6 CFM56-7B S/B , OIL - Lubrication Unit ( and ) - Introduction of New Packing Preformed O-Rings in Fluorocarbone with Better Performance at Low Temperature. MIL-PRF-7808 NOTE: The reference documents listed below are for the engine manufacturer's internal use only: SNECMA specification, PV455. GENERAL ELECTRIC specification, D5OTF1. AAS: AAS: CAD: MOD CAD: MOD Engine type certificate number EASA.E.004, E00055EN and E00056EN - Amended date: July 30, CFM56-2A S/B CFM56-2B S/B CFM56-2 S/B CFM56-3/3B/3C S/B CFM56-5 S/B CFM56-5B S/B CFM56-5C S/B J. Publications Affected None. K. Interchangeability The physical and the functional interchangeabilities are not affected. L. Software Accomplishment Summary None. Revision 10, April 14, 2014 PAGE 4

7 2. APPROVED OILS A. Service Requirements (1) The engine must be serviced only with the approved oils listed in Table 1 of the paragraph ( 2.B. Tabulation of Oils ). There are no known incompatibilities among oil brands, provided they are of the same type and specification. However mixing of two different approved brands of oil is only permitted once per month. NOTE: When changing oil from Turbonycoil 600 to BP Turbo Oil 2197 (BP2197) or when changing oil from BP Turbo Oil 2197 (BP2197) to Turbonycoil 600, remove and inspect the oil filters (supply and scavenge (if applicable) oil filters) on the two first engines reaching 500 hours. Oil consumption and oil pressure have to be carefully monitored during this period, in order to detect supply or scavenge tubes clogging. Oilfilters will have to be sent to CFM: CFM International c/o SNECMA Melun-Montereau Aerodrome de Villaroche BP Melun Cedex FRANCE Attn: Eric Poisson Tel: (2) Fleet changeover from one approved brand to another approved brand of the same type may be accomplished by adding the new oil at the time of service (Topping off). Fleet changeover from one approved brand to another approved brand of a different type may be accomplished after total draining of the oil tank. (3) In case of accidental mixing of a non approved oil brand or a different oil type brand the following action must be taken: - If less than 10% by volume (2 Quarts or less) has been dispensed in to the oil tank, no action is required. - If more than 10% by volume (more than 2 Quarts) has been added in the oil tank, the tank must be drained and refilled with the specified oil brand prior to next flight. Revision 10, April 14, 2014 PAGE 5

8 (4) Type 2 oil brands are limited to a minimum oil temperature of -40 F (-40 C) for engine starting. (5) Type 1 oil must be limited to revenue service operation that could potentially encounter extreme cold temperature below -40 F (-40 C) and must not be used for extended periods of time. (6) Lubrication system servicing, draining and flushing must be done as specified in the Aircraft Maintenance Manual. B. Tabulation of Oils NOTE: This tabulation will be revised as status changes occur. TABLE 1 TABULATION OF CFM56-7B OILS APPROVED TYPE 2 OIL BRANDS BP Turbo Oil 2380 (BP2380) Mobil Jet Oil 2 (MJO2) Mobil Jet Oil 254 (MJO254) Turbonycoil 600 (TN600) BP Turbo Oil 2197 (BP2197) Aero Shell Turbine Oil 560 (ASTO560) APPROVED TYPE 2 OIL BRANDS FOR REVENUE SERVICE EVALUATION ONLY (Require a Service Evaluation Request - Refer to paragraph 3.B.) None. APPROVED TYPE 2 OIL BRANDS FOR ADDITIONAL REVENUE SERVICE EVALUATION ONLY (Require an additional Service Evaluation Request - Refer to paragraph 3.D.) None. MIL-PRF-7808 Grade 3 Specification ACCEPTABLE TYPE 1 OIL BRAND Revision 10, April 14, 2014 PAGE 6

9 3. REQUIREMENTS FOR OIL APPROVAL A. General (1) Airline operators desiring to use an oil not approved for service or service evaluation should contact the CFM International Customer Support Manager prior to operating the engines with the proposed lubricant. Evaluation and/or engine operation of CFM56 engines with other oils without CFM concurrence will void the warranty and/or long-term material cost guarantees. (2) Requests to CFM International for new oil approvals not described by this Service Bulletin will only be considered for evaluation when requested by an airline operator. (3) Any airline operator desiring to use an oil in both service evaluation categories should contact the CFM International Customer Support Manager to obtain the latest status of that oil since it may affect the applicability of its proposed use. In addition, the airline operator must establish documentation of the airline's specific Revenue Service Evaluation Program in a Service Evaluation Request (SER), to be issued by CFM International. (4) A Revenue Service Evaluation is required to obtain CFM International's "Fully Approved" status for an engine oil. The paragraphs 3.B. and 3.C., define the requirements for obtaining approval to use an engine oil in Revenue Service Evaluation and conducting a Revenue Service Evaluation. Modifications of these requirements to comply with a specific operator's service practices may be negotiated and documented in the Service Evaluation Request to be established with CFM International. (5) An additional revenue evaluation is required to obtain CFM International's "Fully Approved" status for engine oils listed in Table 1 of the paragraph ( 2.B. Tabulation of Oils ). The paragraph 3.D. defines the requirements for obtaining approval to use an engine oil in additional Revenue Service Evaluation and conducting an additional Revenue Service Evaluation. Modifications of these requirements to comply with a specific operator's service practices may be negotiated and documented in the additional Service Evaluation Request to be established with CFM International. B. Oil Approval Requirements for Revenue Service Evaluation (1) Laboratory analyses must confirm that the oil conforms to the specifications listed in paragraph 1.I. References of this Service Bulletin. Operators desiring to obtain approval of oils not previously confirmed to the referenced specifications must submit or initiate submittal of laboratory test data and oil samples if required, to conform to requirements of the listed specifications. Revision 10, April 14, 2014 PAGE 7

10 (2) The oil for Revenue Service Evaluation approval must have been subjected to engine testing per or below, followed by an engine teardown inspection unless alternate equivalent testing is agreed to by CFM International and authorized agencies in any particular instance. 150 hours Sea Level Static (SLS) Certification Test (25 "A" Cycles). Simulated Flight Cycles Test 2000 "C" Cycles - accelerated service. Based on the laboratory analysis result, this requirement might be postponed and done in parallel with the Service Evaluation. C. Requirements for Revenue Service Evaluation NOTE: The oil to be service evaluated must have satisfactorily completed the requirements as noted in paragraphs 3.B.(1). and 3.B.(2). of this Service Bulletin. The following basic requirements for conducting a Revenue Service Evaluation must be met unless they are changed in the Service Evaluation Request. The Service Evaluation Request and additional Service Evaluation Request are written by CFM and approved by the Airworthiness Authority. (1) Engine Selection New Engines If the operator's fleet consists entirely of new engines under new engine warranty, a Fleet Sample Evaluation may be conducted. Mixed Fleet If the operator's fleet includes engines not under new engine warranty, a Fleet Sample Evaluation must be conducted. A Fleet Sample Evaluation must have a minimum of 3 engines selected for evaluation. When possible, engines with high accumulated service time must be included in the evaluation to determine the effect of the new oil on any deposits accumulated from the oil previously used. (2) Engine Preparation Selected engines must be prepared as follows: Revision 10, April 14, 2014 PAGE 8

11 (c) The oil must be changed per the Aircraft Maintenance Manual. Suitable identification must be attached to the oil tank to indicate that the engine must be serviced only with the oil being evaluated. It is recommended that the engine mounted accessories such as starters, auxiliary power units etc., be serviced with the same oil being used in the engine in accordance with the applicable Component Maintenance Manual Instructions. All engine lubrication system particle traps, magnetic chip detectors and filter elements must be removed and cleaned or replaced. The "as removed" condition of these components on engines that have been in service must be recorded. Any debris removed must be retained after analysis and submitted to CFM International. Engines having excessively contaminated lube systems may be rejected from participation in the Service Evaluation if, in the opinion of CFM, the results of the evaluation may be in doubt because of the contamination. (3) Engine Maintenance The engines must be maintained as follows: (c) Scheduled engine maintenance inspections and condition monitoring evaluations must be made in accordance with the airline operators established practices and schedules and the CFM56 maintenance program. Inspection of the engine lubricating system particle traps, magnetic chip detectors and filter elements must include documentation of any findings during the initial servicing and any subsequent inspections. Unusual or excessive material collection must be analyzed by the airline operator and the results must be included in reports to CFM International. Findings indicating an oil incompatibility with the engine must be reported immediately to CFM International. An accurate record of oil consumption must be maintained and must include notation of any engine maintenance that could affect the accuracy of oil consumption computations. (4) Oil Evaluation An oil evaluation program must be conducted as follows: Oil samples must be taken at the scheduled intervals specified in the Service Evaluation Request. Revision 10, April 14, 2014 PAGE 9

12 (c) The samples must be taken from the engine oil tank per the Aircraft Maintenance Manual. The sample must be taken as soon as possible after engine shutdown and must be drawn from the oil tank prior to adding oil. Samples must be identified with the date, engine serial number, engine installed position number, flight time of engine (TSN and TSR) and the aircraft model and number. The samples, properly identified, must be submitted to a qualified laboratory for the chemical and physical analysis as described in the Service Evaluation Request. NOTE: Consideration of oil add (dilution) effect must be factored into all oil analyses. (d) Copies of the data and all findings must be submitted to CFM International for review. (5) Engine Evaluation (c) (d) A minimum of 2 complete engines that have used the oil being evaluated for a minimum of 5000 hours for each engine of operation must be inspected. The inspection may be on an opportunity basis and may consists of any combination of engine/engine Maintenance Units (EMU) and operating times until two engines have been inspected. The engine inspections must be both visual and dimensional inspections of the engine oil-wetted parts as specified in the Service Evaluation Request and in conformance with the applicable Engine Shop Manual. The CFM International Product Support Engineering Organization (CFM-PSE) must be notified of engine inspections in sufficient time that a representative from that organization may witness the inspections. The results of these inspections must be documented including photographs of unusual and representative conditions. This data must be submitted to CFM International. (6) Records The following information must be recorded: Previous oil brands used since the engine or modules, were new and refurbished. Oil additions, date of additions and oil consumption data for each engine. Revision 10, April 14, 2014 PAGE 10

13 (c) (d) (e) Log of oil sample extractions and laboratory results for each sample for each engine. Engine log history since evaluation began including engine serial number, aircraft identification number, engine installed position number and flight hours/cycles at each maintenance action. Engine and module history records relative to the oil-wetted parts including engine/module serial numbers, time/cycle records, parts replacement, modification and repair records, inspection results and photographs. (7) Reports After completion of the Revenue Service Evaluation, a final report must be made to CFM International. The report must summarize the results of all the requirements specified in the Service Evaluation Request. CFM will revise this Service Bulletin to reflect the results of the service evaluation. D. Requirements for Additional Revenue Service Evaluation The additional Service Evaluation Request is written by CFM and approved by the Airworthiness Authority. NOTE: The objective of this additional Service Evaluation Request is to evaluate the oil behavior in service in regard with: - Oil thermal stability: Oil samples analysis, - Oil coking: scavenge and supply tubes inspection, - Coke shedding phenomenon: filter inspection, - Materials compatibility: engine parts inspection. A limited number of candidate engines for oil analysis and parts inspection will be selected following criteria defined in the additional Service Evaluation Request. (1) Reports After completion of the additional Revenue Service Evaluation, a final report must be made to CFM International. The report must summarize the results of all the requirements specified in the additional Service Evaluation Request. Revision 10, April 14, 2014 PAGE 11

14 CFM will revise this Service Bulletin to reflect the results of this additional Service Evaluation. Revision 10, April 14, 2014 PAGE 12

15 4. A - COMMUNICATIONS All communications relative to this Service Bulletin must be directed to: CFM International, S.A. c/o SNECMA Site de MELUN-MONTEREAU BP Melun Cedex FRANCE Attn: Mgr, P.S.E Fax: CFM International Product Support Center 111 Merchant Street CINCINNATI OH, U.S.A Attn: Mgr, Product Support Engineering Rapifax: Fax: Revision 10, April 14, 2014 PAGE 13