ML20004E764

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Forwards LER 81-046/03L-0.Detailed Event Analysis Encl
ML20004E764
Person / Time
Site: Salem PSEG icon.png
Issue date: 06/08/1981
From: Uderitz R
Public Service Enterprise Group
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20004E765 List:
References
NUDOCS 8106150217
Download: ML20004E764 (3)


Text

.-.s (1PSEG Public Service Electric and Gas Company 80 Park Pld a Newark, N.J. 07101 Phone 201,430-7000 June 8, 1981 9 "I '6Ds Mr. Boyce H. Grier Q'\}

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2500 gpm was not reached; the flow rate of N 900 gpm was sustained. This occurrence constituted operation in a degraded mode in accordance with Technical Specification 6.9.1.9.b. DESIGNATION OF APPARENT CAUSE OF OCCURRENCE: The designation of the apparent cause of this occurrence is equipment failure. The preliminary investigation of the problem revealed that service water valve 13SW65 did not automatically shift position to provide the higher cooling water flow required. In order to identify the specific problem, the subject valve was dismantled and inspected. The results of this inspection identified the specific cause of the problem to be an equipment failure when the valve stem was found to be separated from the actuator due to a cracked *runnion block plug. ANALYSIS OF OCCURRENCE: Restore the inoperable group of cooling fans to cperable status within 7 days or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30. hours IAW Technical Specification 3.6.2.3. , LER 61-46/03L June 8, 1981 CORRECTIVE ACTION: The trunnion block plug for 13SW65 was replaced. In addition, and as a preventive maintenance measure, the following valve parts were also replaced while the subject valve was dismantled: snap ring, rod end bearing, feedback spring assembly, disphragm, and the vane arm pin. The subject valve was subsequently reassembled, tested, and returned to service. Action Statement 3.6.2.3 was terminated at 2335 hours0.027 days <br />0.649 hours <br />0.00386 weeks <br />8.884675e-4 months <br /> on May 13, 198.'. FA1 LURE DATA: Valve 13SW65 Masoneilan International, Inc. Trunnion Block Plug #021107-202-319 Snap Ring #971881-053-181 i Vane Arm Pin #037002-245-153 Rod End Bearing #971705-018-888 Diaphragm #0211114-020-686 Feedback Spring Sub. Assembly #021100-066-88 Prepared By J. J. Espey Manager - Saled / , Generating Station SORC Meeting No. 81-45 l t l I f _ _ _ _ _ _ _