CFM56_5B_SB_REV_79-0001.pdf

7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

1/15

TRANSMITTAL SHEET

CFM INTERNATIONAL

CFM56-5B SERVICE BULLETIN 79-0001, REVISION 9

OIL - GENERAL (79-00-00) - APPROVED OILS FOR CFM56-5B ENGINES

MAY 14, 2009

This page transmits Revision 9 to CFM56-5B Service Bulletin 79-0001 dated October 13, 1994, Revision 1

dated September 02, 1996, Revision 2 dated September 15, 1998, Revision 3 dated September 13, 1999,

Revision 4 dated October 11, 2000, Revision 5 dated July 05, 2001, Revision 6 dated June 24, 2003,

Revision 7 dated July 07, 2006 and Revision 8 dated July 10, 2008.

This Service Bulletin has been revised to update the service requirements procedure.

Consequently, the following paragraphs have been updated:

1.C. Compliance and Warranty, 1.G. Manpower, 1.H. Weight and Balance, 1.K. Interchangeability, 1.L.

Software Accomplishment Summary , 2.A. Service Requirements and 3.B.(1)..

Engines that have previously complied with this Service Bulletin are not affected.

The vertical dash in the left margin identifies change. Due to the extent of format changes, the vertical dash

in the left-hand margin is omitted in showing a format change.

This Service Bulletin is reissued in its entirety.

This Service Bulletin has been changed to the new Service Bulletin format.

7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

2/15

7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

3/15

OIL - General (79-00-00) - Approved Oils for CFM56-5B Engines

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 anddisassembly, 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.

October 13, 1994 CFM56-5B S/B 79-0001

Revision 09, May 14, 2009 PAGE 1 of 13

7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

4/15


1. PLANNING INFORMATION

A. Effectivity

CFM56-5B1, -5B2, -5B4, -5B5, -5B6, -5B7

CFM56-5B1/P, -5B2/P, -5B3/P, -5B4/P, -5B5/P, -5B6/P, -5B7/P

CFM56-5B8/P, -5B9/P

CFM56-5B1/2P, -5B2/2P, -5B3/2P, -5B4/2P, -5B6/2P, -5B9/2P

CFM56-5B3/P1, -5B4/P1

CFM56-5B3/2P1, -5B4/2P1

CFM56-5B1/3, -5B2/3, -5B3/3, -5B4/3, -5B5/3, -5B6/3, -5B7/3, -5B8/3, -5B9/3

CFM56-5B3/3B1, -5B4/3B1

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 on all engines.

October 13, 1994 CFM56-5B S/B 79-0001

Revision 09, May 14, 2009 PAGE 2

7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

5/15


(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.

NOTE: For customer using BP2197 or MJO254 (on brand-new engines or cleaned

engines), the following S/Bs must be applied:

CFM56-5B S/B 72-0660

CFM56-5B S/B 79-0030 (applicable until implementation of S/B 72-0660)

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 ofDOA n 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

CFM56-5B Engine Shop Manual, CFMI-TP.SM.9

A318/A319/A320/A321 Aircraft Maintenance Manual

CFM56-5B SER 79-0001 , Service evaluation of Mobil jet oil 254 (MJO 254) and Aeroshell

turbine oil 560 (ASTO 560) lubricating oils on CFM56-5B.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

6/15


CFM56-5B S/B 72-0660, ENGINE - Accessory Gearbox Assembly (72-63-00) - 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.

CFM56-5B S/B 79-0030, OIL - General (79-00-00) - Oil Consumption Monitoring.

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: 27134 CAD: MOD065657

CFM56-2A S/B 79-0001

CFM56-2B S/B 79-0001

CFM56-2 S/B 79-0001

CFM56-3/3B/3C S/B 79-0001

CFM56-5 S/B 79-0001

CFM56-5C S/B 79-0001

CFM56-7B S/B 79-0001

J. Publications Affected

None.

K. Interchangeability

The physical and the functional interchangeabilities are not affected.

L. Software Accomplishment Summary

None.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

7/15


2. APPROVED OILS

A. Service Requirements

(1) The engine must be serviced only with an approved oil listed in Table 1 (page 6).

There are no known incompatibilities among oil brands, provided they are of the

same type and specification. However, mixing of more than two different approved

brands of oil and frequently changing (within one month) between approved brands

of oil must be prevented.

NOTE: When changing oil from Turbonycoil 600 or Castrol 5000 to BP2197 or when

changing oil from BP2197 to Turbonycoil 600 or Castrol 5000, remove and

inspect the oil fi lters (supply and scavenge (if applicable) oil fi lters) on thetwo 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.

Oil filters will have to be sent to CFM:

CFM International

c/o SNECMA

Melun-Montereau

Aerodrome de Villaroche -

BP1936 - 77019 Melun Cedex -FRANCE

Attn: Eric Poisson

Tel: 33-1-64-14-8024

(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 belonging to

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 shall 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.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

8/15


(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 andflushing shall be performed 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 CFM56-5B OILS

APPROVED TYPE 2 OIL BRANDS

Castrol 5000

BP turbo oil 2380

Mobil jet oil 2 (MJO2)

Mobil jet oil 254 (MJO 254) on brand-new engines or cleaned engines

Turbonycoil 600 (TN600)

BP turbo oil 2197

APPROVED TYPE 2 OIL BRANDS FOR REVENUE SERVICE EVALUATION ONLY

(Require a Service Evaluation Request-Refer to paragraph 3.B.)

APPROVED TYPE 2 OIL BRANDS FOR ADDITIONAL REVENUE

SERVICE EVALUATION ONLY

(Require an additional Service Evaluation Request Refer to paragraph3.D.)

Aeroshell turbine oil 560 (ASTO 560)

Mobil jet oil 254 (MJO 254) on engines which have operated with another oil brand

prior to switch to MJO 254 without being cleaned

ACCEPTABLE TYPE 1 OIL BRAND

MIL-PRF-7808 grade 3 specification

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

9/15


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 (CFM) 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 shall 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 following 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 specifi

c operator's service practices may be negotiatedand 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. The following 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 shall submit,

or initiate submittal of, laboratory test data and oil samples, if required, to conform to

requirements of the listed specifications.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

10/15


(2) The oil for revenue service evaluation approval must have been subjected to

engine testing per (a) or (b) below, followed by an engine teardown inspection,

unless alternate equivalent testing is agreed to by CFM International and authorized

agencies in any particular instance.

(a) 150 hours sea level static (SLS) Certification Test (25 "A" Cycles).

(b) Simulated Flight Cycles Test 2000 "C" Cycles - accelerated service.

Based upon laboratory analysis result this requirement might be postponed

and performed 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 modified 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

(a) New Engines

If the operator's fleet consists entirely of new engines under new engine

warranty, a Fleet Sample Evaluation may be conducted.

(b) Mixed Fleet

If the operator's fleet includes engines not under new engine warranty, a Fleet

Sample Evaluation shall be conducted. A Fleet Sample Evaluation shall 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 shall be prepared as follows:

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

11/15


(a) The oil shall be changed per the Aircraft Maintenance Manual. Suitable

identification shall be attached to the oil tank to indicate that the engine shall

be serviced ONLY with the oil being evaluated.

(b) 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.

(c) All engine lubrication system particle traps, magnetic chip detectors, and

filter elements shall be removed and cleaned or replaced. The "as removed"

condition of these components on engines that have been in service shall

be recorded. Any debris removed shall be retained after analysis andsubmitted 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 shall be maintained as follows:

(a) Scheduled engine maintenance inspections and condition monitoring

evaluations shall be made in accordance with the airline operators established

practices and schedules, and the CFM56 maintenance program.

(b) Inspection of the engine lubricating system particle traps, magnetic chip

detectors, and filter elements shall include documentation of any findings

during the initial servicing and any subsequent inspections. Unusual or

excessive material collection shall be analyzed by the airline operator and the

results shall be included in reports to CFM International. Findings indicating

an oil incompatibility with the engine shall be reported immediately to CFM

International.

(c) An accurate record of oil consumption shall be maintained and shall include

notation of any engine maintenance that could affect the accuracy of oil

consumption computations.

(4) Oil Evaluation

An oil evaluation program shall be conducted as follows:

(a) Oil samples shall be taken at the scheduled intervals specified in the Service

Evaluation Request.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

12/15


(b) The samples shall be taken from the engine oil tank per the Aircraft

Maintenance Manual. The sample shall be taken as soon as possible after

engine shutdown, and shall be drawn from the oil tank prior to adding oil.

Samples must be identified with the date, engine serial number, engine

installed position number, fl ight time of engine (TSN and TSR), and the aircraft

model and number.

(c) The samples, properly identified, shall 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 shall be factored into all oil

analyses.

(d) Copies of the data and all findings shall be submitted to CFM International

for review.

(5) Engine Evaluation

(a) A minimum of 2 complete engines that have used the oil being evaluated for

a minimum of 5000 hours for each engine of operation, shall 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.

(b) The engine inspections shall 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.

(c) The CFM International Product Support Engineering Organization (CFM-PSE)

shall be notified of engine inspections in sufficient time that a representative

from that organization may witness the inspections.

(d) The results of these inspections shall be documented, including photographs

of unusual and representative conditions. This data shall be submitted to

CFM International.

(6) Records

The following information shall be recorded:

(a) Previous oil brands used since the engine, or modules, were new, and were

refurbished.

(b) Oil additions, date of additions, and oil consumption data for each engine.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

13/15


(c) Log of oil sample extractions, and laboratory results for each sample for each

engine.

(d) 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.

(e) 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

(a) After completion of the revenue service evaluation, afinal report shall be

made to CFM International. The report shall summarize the results of all the

requirements specified in the Service Evaluation Request.

(b) CFM will revise this Service Bulletin to reflect the results of the service

evaluation.

D. Requirements for Additional Revenue Service Evaluation

NOTE 1: For details refer to SER 79-0001.

The additional Service Evaluation Request is written by CFM and approved by theAirworthiness Authority.

NOTE 2: 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.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

14/15


(1) Reports

(a) After completion of the additional revenue service evaluation, a final report

shall be made to CFM International. The report shall summarize the results of

all the requirements specified in the additional Service Evaluation Request.

(b) CFM will revise this Service Bulletin to reflect the results of this additional

service evaluation.

October 13, 1994 CFM56-5B S/B 79-0001


7/23/2019 CFM56_5B_SB_REV_79-0001.pdf

15/15


4. A - COMMUNICATIONS

All communications relative to this Service Bulletin shall be directed to:

CFM International, S.A.

c/o SNECMA

Site de MELUN-MONTEREAU

BP 1936 - 77019 Melun Cedex

FRANCE

CFM International

Product Support Center

111 Merchant Street

CINCINNATI OH, 45246

U.S.A

Attn: Mgr, P.S.E

Fax: 33-1-64-14-87-65

Attn: Mgr, Product Support Engineering

Rapifax: 513-771-5579

Fax: 513-552-2000

October 13, 1994 CFM56-5B S/B 79-0001


Documents

CFM56_5B_SB_REV_79-0001.pdf