ML20078A714

Interim Deficiency Rept Re Failure of Crankshaft in Emergency Standby Diesel Generator 102.Initially Reported on 830813.Team of Experts Retained to Assist in Determining Cause of Failure

ML20078A714
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	09/14/1983
From:	James Smith LONG ISLAND LIGHTING CO.
To:	Allan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
10CFR-050.55E, 10CFR-50.55E, SNRC-963, NUDOCS 8309230384
Download: ML20078A714 (3)

Text

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d LONG ISLAND LIGHTING COMPANY

, fam,w SHOREHAM NUCLEAR POWER STATION

___l P.O. BOX 618, NORTH CCeUNTRY ROAD + WADING RIVER, N.Y.11792 Direct Dial Number September 14, 1983 SNRC-963 Mr. James Allen Acting Regional Administrator Office of Inspection & Enforcement - Region 1 U.S. Nuclear Pegulatory Commission 631 Park Avenue King ot Prussia, PA 19406 Long Island Lighting Company Shoreham Nuclear Power Station - Unit 1 Docket No. 50-322 Dea- Mr. Allen:

On August 13, 1983, in accordance with 10CFR50.55 (e) , we reported verbally to Region 1 a potential deficiency concerning the failure of the crankshaft in the Shoreham Emergency Standby Diesel Generator 102.

Description of the Deficiency The first indication of crankshaft tailure occurred during re-testing of Diesel Generator 102 (1R43*G-102) atter changing the cylirder heads, when a shutdown of the engine was necessitated by the determination that abnormal vibration levels were being en-countered. The shutdown occurred 15 minutes prior to the scheduled completion of the test. After engine cool-down, cover plates were removed to facilitate inspection and it was discovered that the crankshaft had tailed in the vicinity at the connecting rod journal at the #7 cylinder.

As a result of this failure, inspections were performed on the crankshafts of Diesel Generators 101 and 103 (lR43*G-101 &

1R43*G-103). Linear indications were found in the crankshafts of both remaining engines in the area of the drive pin journal re-entry fillet at the web. These indications appeared similar in nature and were noted at several locations on each crankshaft.

In view of the above, it has been determined that a reportable condition exists under 10CFR50.55 (e) 8309230384 830914 7 PDR ADOCK 05000322 S pop (g

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SNRC-963

-September ~14, 1983-Page 2 Corrective Action and Action to Prevent Recurrence At present, an investigation is underway to determine the cause of the tailure of the Diesel Generator 102 crankshaft and the linear indications on the Diesel Generator 101 and 103 crankshafts. In addition, a team of experts.has been retained and is assisting

'LILCO in our efforts. Upon completion of our investigation, a full report'will be submitted to Region I.

If you have any questions' relative to this matter, please do not

-hesitate to contact us.

-Very truly yours, J. L. Smith k Manager, Special Projects Shoreham Nuclear Power Station WMJ/ law S4 cc: Mr. Richard DeYoung, Director NRC Office of Inspection & Enforcement Division of Reactor Operating' Inspection Washington, DC 20555 Mr. C. Petrone, Site NRC All Parties listed in Attachment 1

ATTACHMENT 1 Lawrence Brenner, Esq. Herbert H. Brown, Esq.

Administrative Judge . Lawrence Coe Lanpher, Esq.

Atomic Safety and Licensing Karla J. Letsche, Esq.

Board Panel Kirkpatrick, Lockhart, Hill U.S. Nuclear Regulatory Christopher & Phillips Commission 8th Floor

. Washington, D.C. 20555 1900 M. Street, N.W.

Washington, D.C. 20036 Dr. Peter A. Morris Administrative Judge Mr. Marc W. Goldsmith Atomic Safety and Licensing Energy Research Group Board Panel 4001 Totten Pond Road U.S. Nuclear Regulatory Waltham, Massachusetts 02154 Commission Washington, D.C. 20555 MHB Technical Associates 1723 Hamilton Avenue Dr-. George A. Ferguson Suite K School of Engineering San-Jose, California 95125 Howard University 2300 Fifth Street Washington, D.C. 20059 Stephen B. Latham, Esq.

Twomey, Latham & Shea 33 West Second Street Daniel F. Brown, Esq. P.O. Box 398 Attorney Riverhead, New York 11901 Atomic Safety and Licensing Board Panel

/ U.S. Nuclear Regulatory- Ralph Shapiro, Esq.

Commission Cammer and Shapiro, P.C.

Washington, D.C. 20555 9 East 40th Street New York, New York 10016 Bernard M. Bordenick, Esq.

David A. Repka, Esq. Matthew J. Kelly, Esq.

U.S. Nuclear Regulatory State of New York Commission Department of Public Service Washington, D.C. 20555 Three Empire State Plaza Albany, New York 12223

'Mr. James Dougherty 3045 Porter Street Washington, D.C. 20008

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