ML19242A297

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RO 79-20/01P on 790724:during Baseplate Insp Procedure,Pipe Hanger Baseplate H-208 Discovered Inoperable.Caused by Lack of Formal Installation Procedure During Initial Installation.Hanger Will Be Repaired
ML19242A297
Person / Time
Site: Beaver Valley
Issue date: 07/24/1979
From: Werling J
DUQUESNE LIGHT CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
BVPS:JAW:691, NUDOCS 7908010318
Download: ML19242A297 (3)


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IE*" DUQUESNE LIGHT COMPANY Beaver Valley Power Station Post Office Box 4 Shippingport, PA 15077

  • July 24, 1979 BVPS: JAW:691 Beaver Valley Power Station, Unit No. 1 Decket No. 5J ~14, License No. DPR-66 LER 79-20/0lP Mr. B. H. Crier, Director of Regulation United States Nuclear Regulatory Commission Region 1 -

631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

In accordance with Technical Specification 6.9.1.8.1, the following occurrence is reported. The report was discussed with Mr. D. A. Beckman at 0930 ho2rs on July 24, 1979.

During performance of the baseglate inspection procedure developed to comply with IE 3ulletin 79-02, an inoperable baseplate was observed. The pipe hanger baseplate was H-208 which is on the three inch charging line near the regenerative heat exchange: in containment. The concrete expansion anchors in the baseplate were improperly installed and failed during the pullout test because of oversizad holes.

The failure was attributed to the lack of a formal installation procedure 6 ring the initial installation. The hanger will be redesignem and repaired or cc7 1 rc.ed prior to the plant returning to power. A complete report of inspection results and repairs will be made in the response to IE Bulletin 79-02.

Very truly yours, h4 <tav)

J. A. Werling Superintendert

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Mr. B. H. Crier July 24, 1979 BVPS:JAU:691 Page 2 cc: Director Of Management & Program Analysis /

United States Nuclear Regulitory Com:nission Washington, D. C. 20555 D. L. Wigginton, BVPS Licensing Project Manc.ger Jnited States Nuclear Regulatory Comissic.t Washington, D. C. 20555 L'. A. Becicnan, Nuclear Regulatory Commission, King af Prussia, PA G. A. Olson, Secretary, Prime Movers Committee - EEI

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