ML18066A330

Part 21 Rept Re Potential Safety Hazard Associated with Wrist Pin Assemblies for FM-Alco 251 Engines at Palisades Nuclear Power Plant.Caused by Insufficient Friction Fit Between Pin & Sleeve.Supplier of Pin Will No Longer Be Used

ML18066A330
Person / Time
Site:	Palisades
Issue date:	11/11/1998
From:	Golding J COLTEC INDUSTRIES, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-98 NUDOCS 9811180227
Download: ML18066A330 (4)

Text

. .J.. NOV-13-1998 14: 52 PRRTS/SERVICE/QR

.* 608 364 8417 P.02/03 * ' *'l* Coltec Industries

@ November 11, 1998 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

FM-Alco 251 Engine, Wrist Pin Assembly, Catalog No.: 2420021-2 Fairbanks Morse Engine Division 701 White Avenue Beloit, WI 53511-5492 www.fairbanksmorse.com 608/364*4411 Fax: 608/364-0382 File No.98-001 On November 11, 1998, Coltec Industries, Fairbanks Engine Division (FMED), became aware of a potential safety hazard associated with the wrist pin assemblies for FM-Alco 251 engines. The wrist pin assembly consists ofa wrist pin and a sleeve fitted in the bore of the wrist pin and held in place by rolling each end which causes a tight friction fit The sleeves of the subject wrist pin assemblies were supplied with an incorrect material, which is not suitable for rolling -expansion.

Therefore, the friction fit between the pin and the sleeve may not be sufficient.

which could cause the sleeve to become lose and possibly contact the liner. A drawing of the wrist pin assembly is attached.

Corrective actions have been taken to prevent recurrence, which include no longer using the supplier of the defective wrist pins, and retraining the Receipt Inspectors and the Quality Assurance Supetvisor to perform proper inspections and reviews of certifications.

The only affected utility is Consumers Power-Palisades, which received a total of 36 wrist pin assemblies between 1995 and 1996. It should be noted that no failures have occurred to date and the problems with the wrist pin assemblies occurred in commercial applications after many thousands of hours of cyclic operation.

FM-Alco 25 l engines in nuclear applications are not typically subjected to this type of operation.

However, it is that the subject wrist pins be replaced with pin assemblies made with the correct sleeve material.

• . Sincerely, James C. Golding

• Senior Quality Assurance Engineer Cc: Terry Gill Mary Ann.field Ted Stevenson

'£ 9811100227 981111 . 0 PDR ADOCK S "'" PDR i -----------------I A division of Cottec Industries Inc h "* " 1111411998 U.S. Nuclear Regulatory Commission Operations Center Event Report General Information or Other (GEN) Event# 35030 ...............*................*..................................................................................................*.

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Rep Org: COLTEC INDUSTRIES Licensee:

COLTEC INDUSTRIES Region: 3 City: Beloit County: State: WI NRC Notified by: James Golding HQ Ops Officer: JOHN MacKINNON Emergency Class: NON EMERGENCY 10 CFR Section: Notification Date I Time: 11 /13/1998 15:45 Event Date I Time: 11 /13/1998 14:45 *Last Modification:

11/13/1998 Docket#: Agreement State: No License#:

Notifications:

GEOFFREY WRIGHT VERN HODGE 21.21 UNSPECIFIED PARAGRAPH (EST) (CST) R3 NRR ************************************************************************************************************************************

Coltec Industries, Fairbanks Engine Division (FMED) a potential safety hazard associated with the wrist pin assemblies of FM-Alco 251 engines. Only affects Palisades Power Plant. . ' . *. 10CFRPART21REPORT On November 11, 1998, Coltec Industries, Fairbanks Engine Division (FMED), became aware of a potential safety hazard associated with the wrist pin assemblies for FM-Alco 251 engines. The wrist pin assembly consists of a wrist pin and a sleeve fitted in the bore of the wrist pin and held in place by rolling each end which causes a tight friction fit. The sleeves of the subject wrist pin assemblies were supplied with an incorrect material, which is not suitable for rolling -expansion.

Therefore, the friction fit between the pin and the sleeve may not be sufficient, which could cause the sleeve to become loose and possibly contact the liner. Corrective actions have been taken to-prevent recurrence, which includes no longer using the supplier of the defective wrist pin, and retraining the Receipt Inspectors and the Quality Assurance Supervisor to perform proper inspections and reviews of certifications.

Consumers Power-Palisades is the only utility, which received a total of 36wrist pin assemblies between 1995 and 1996. It should be noted that no failures have occurred to date and the problems with the wrist pin assemblies occurred in commercial applications after many thousands of hours of cyclic operation.

FM-Alco 251 engines in nuclear applications are not typically subjected to this type of operation.

However, it is recommended that the subject pins be replaced with pin assemblies made with the correct sleeve material.

I

• ' NOV-13-1998 14:52 Coltec Industries

@ Fairbanks Morse Engine Division PARTS/SERVICE/QA FAX TO: ATTN: :NRC Operations Center FROM: James Golding, Coltec Ind,ustries

SUBJECT:

Part 21 File No.98-001

• 608 364 8417 P.01/03 BF5318 PAGE DATE OUR REF YOUR REF Attached is notification of part 21 File No.98-001. Written notification will follow. If there are any questions please contact me at (608) 364-8315.

James Golding TELECOPY NUMBERS n MARKETING

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