United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9811180227


Coltec Industries

Fairbanks Morse
Engine Division
701 White Avenue
Beloit, WI 53511-5492
www.fairbanksmorse.com [EXIT]
608/364-4411
Fax: 608/364-0382

November 11, 1998

Document Control Desk File No. 98-001
U.S. Nuclear Regulatory Commission
Washington, DC 20555

Subject: FM-Alco 251 Engine, Wrist Pin Assembly, Catalog No.: 2420021-2

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 lose and possibly contact the finer. 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 renaming the Receipt Inspectors and the Quality Assurance Supervisor 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 251 engines in nuclear applications are not typically subjected to this type of operation. However, it is recommended 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 Armfield
Ted Stevenson

A Division of Coltec Industries Inc


11/14/1998 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 1


General Information or Other (GEN) Event# 35030
Rep Org: COLTEC INDUSTRIES Notification Date/Time: 11/13/1998
15:45 (EST)
Licensee: COLTEC INDUSTRIES Event Date/Time: 11/13/1998
14:45 (CST)
Last Modification: 11/13/1998
Region: 3 Docket #:
City: Beloit Agreement State: No
County: License #:
State: WI
NRC Notified by: James Golding Notifications: GEOFFREY WRIGHT R3
HO Ops Officer: JOHN MacKINNON VERN HODGE NRR
Emergency Class: NON EMERGENCY
10 CFR Section: 21.21 UNSPECIFIED PARAGRAPH

Coltec Industries, Fairbanks Engine Division (FMED) became aware of a potential safety hazard associated with the wrist pin assemblies of FM-Alco 251 engines. Only affects Palisades Nuclear Power Plant.

10 CFR PART 21 REPORT

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 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 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.

BF5316

Coltec Industries

FAX TO: Fairbanks Moras Engine Division PAGE
 
  DATE
ATTN: NRC Operations Center OUR REF
FROM: James Golding, Coltec Industries YOUR REF
 
SUBJECT: Part 21 File No. 98-001
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
PARTS MARKETING


Chart "THIRD ANGLE PROJECT"






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