SBLM2500 Ind 176

 

OPTIONAL GE Industrial AeroDerivative  Gas Turbines 

SERVICE BULLETIN

 

GE PROPRIETARY INFORMATION 

LM2500-IND-0176 August 28, 2003

The in infor forma matio tion n co cont ntain ained ed in this this docum documen entt is GE pro propr prie ietar tary y in infor format matio ion n and and is disclo disclose sed d in confi con fide dence nce.. It is the the prop propert erty y of GE andshall andshall notbe used used,, discl disclos osed ed to ot othe hers rs,, or re repr produ oduced ced witho wit hout ut the the expr expres ess s writt written en consen consentt of GE, inc inclu ludi ding ng,, butwithou butwithoutt li limit mitati ation on,, it is not not to be used used in the creatio creation, n, manufact manufacture ure,, developm development ent,, or de deriva rivation tion of any repa repairs irs,, modifica modificatio tions, ns, spare spare parts, designs, or configuration changes or to obtain FAA or any government or regulatory appr approv oval al to do so so.. If consen consentt is gi given ven for repro reproduc ductio tion n in whole whole or in part, part, thi this s notic notice e and and the notic notice e se sett forthon forthon each each page page of thi this s docum documen entt sh shallapp allappearin earin anysuchreprod anysuchreproduc uctio tion n in whole whole or in part. part. Th The e in infor format matio ion n co conta ntain ined ed in thi this s docum documen entt may may al also so be co contr ntroll olled ed by U.S. U.S. expo export rt controllaws. Unauthorized Unauthorizedexportor exportor re-export re-export is prohibited. prohibited. Copyright Copyrig ht (2003)GeneralElectric (2003) GeneralElectric Company,U.S Company,U.S.A. .A. SUBJECT: Introduction of EABAL Software Change (LM2500+ DLE Models)

I.   PLANNING INFORMATION INFORMATION A.   Effectivity (1)   PRODUCTS: LM2500+ LM2500+ DLE DLE Mo Models dels (2)   ENGINE SERIAL NUMBERS: LM2500+ gas turbines, serial numbers 559-051, 559-052, 559-101 through 559-109, and 559-113, are affected by this Service Bulletin. LM2500+ gas generators, serial numbers 636-050, 636-051, 636-101 through LM2500+ 636-106, 642-102 through 642-107, 642-110 through 642-113, 642-115, 642-116, 642-118 through 642-135, and 642-137 through 642-151, are affected by this Service Bulletin. B.   Reason (1)   Objective: The primary objective of this software update is to provide newly available reliability/a relia bility/availabi vailability/main lity/maintainabi tainability lity (RAM) related related fixes and features features as-well-as ease of use functionality to the LM2500+ DLE fleet. (2)   Condition/Event(s): DLE engines across the customer base have experienced a wide range of events from trips related to high combustor acoustics or the loss of a flame sensor to operability issues related to the calculation of fuel compressibility. The development of advanced algorithms has provided the opportunity to improve on engine RAM. Advancements in software development tools has provided productivity enhancements to control software developers and end users.

OPTIONAL

PAGE AGE 1 of 5

 

LM2500-IND-0176 August 28, 2003

(3)   Cause: This product has been developed as part of GE’s ongoing efforts to continuously continu ously improve engine operation operation with the integration integration of new technology and to address customer requested enhancements. (4)   Improvement: The S3 block change for Woodward and GE Mark V and Mark VI controlled engines includes EABAL logic for improved combustor acoustics protection, a blowout detection fix to avoid loss of blowout protection after load drops, a new algorithm to account for fuel compressibility effects, and CDP bleed valve freeze logic to help prevent premature failure of bleed valve actuator seals due to system noise. C.   Description This Service Bulletin is to introduce the EABAL software change in +DLE Models. D.   Compliance Category: Optional (O) Level: Field (F)

Timin ming Code: 7

GE recommends this Service Bulletin be accomplished at the customer’s option. E.   Manpower Approximately 1 man-hour is required to accomplish this Service Bulletin. F.   Tooling No special tools are required.

PAGE AGE 2 of 5 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.

 

LM2500-IND-0176 August 28, 2003

G.   Material Requirements (1)   None. This Service Bulletin involves involves a software change change only. only. For additional information contact your GE Energy Services Account Manager or GE Customer Satisfaction manager at the address below: GE Marine & Industrial Aeroderivative Gas Turbines MD S-133 One Neumann Way P.O. Box 156301 Cincinnati, OH 45215-6301 U.S.A. Attn: GE Customer Account Manager H.   Materi Material al Configura Configuration tion Chart Not applicable. applicable. I.   Material Interchangeability Physical and Functional Functional interchangeability interchangeability are not affected by this Service Bulletin. J.   Material Material Disposition Disposition Not Applicable. K.   Material Reidentification None. L.   References None.

PAGE AGE 3 of 5 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.

 

LM2500-IND-0176 August 28, 2003

M.   Previous Previous Modifications Modifications None. II.   ACCOMPLISHMENT INSTRUCTIONS

NOTE Implementation of the software block change cannot be accomplished and tracked against a gas turbine serial number. Tracking of the implementation of the software block change must be against a specific package identification number. Service ce Bulletin Bulletin involves involves a software change change only. only. For additional additional information, information, A.   This Servi contact your GE Energy Services Account Manager or GE Customer Satisfaction Manager. III.   COMPLIANCE RECORD Not Applicable. This Service Bulletin is for information only. It will not be tracked against an Engine Serial Number.

PAGE AGE 4 of 5 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.

 

LM2500-IND-0176 August 28, 2003

Introduction of EABAL Software Change (LM2500+ DLE Models)

PAGE AGE 5 of 5 GE PROPRIETARY INFORMATION - Subject to the restrictions on the cover or first page.