ML20126F277
| ML20126F277 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/06/1981 |
| From: | Werling J DUQUESNE LIGHT CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| BVPS:JAW:1121, RO-81-019-01P, RO-81-19-1P, NUDOCS 8103120476 | |
| Download: ML20126F277 (2) | |
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e,nu,.e.e, sw DUQUESNC LICHT C0:!PANY Beaver Valley Power Station Post Office Box 4 Shippingport, PA 15077' March 6, 1981 BVPS: jab *:1121 Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 D
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Mr. D. H. Grier, Director of Regulation wg 7I United States Nuclear Regulatory Commission y
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Dear Mr. Grier:
This report of degraded Reactor Coolant System flew is beine, submitted at the re:;uest of the DVPS NRC Resident Inspector, Mr. D. A.
he c ha.in.
With the reactor shutdown at approximately 100F and atmospheric pressure, at-1625 hours on 'farch 5, 1951, the Residual !! eat Removal low flow alarm was actuated accompanied by low running current on the 1B rump.
System flow was about 500 gpm.
The RHR System was vented and the l'eactor Cnolant piping was refilled to approxir.utely G5%. Munaal RiiR fivw was re.;tored at J936 hours.
There were no adverse effects en the Reactor Coolant System as a result of this inc1:! cat.
Subcooled conditions were maintained la the reactor throu.zhout the incident since the na::imum te:..perature titroughout was 1.63F.
The re was ne sa f e r;. h u.4 rd t o tbo site or the autli: during this inciduat.
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Mr. B.11. Crier March 6, 1981 BVPS: JAW:1121 Page 2 cc: Director Of Managecent 6 Program Analysis United States Nuclear Regulatory Commission Washington, D. C.
20555 D. A. Chaney, BVPS Licencing Project Managerv/
United States Nuclear Regulatory Commission Washington, D. C.
20555 D. A. Beckman, Nuclear Regulatory Coucission, BVPS Site Inspector Nucicar Safety Analysis Center, Palo Alto, California C. E. Muckle, Factory Mutual Engineering, Pittsburgh Mr. John Alford, PA Public Utilities Commission, Harrieburg, PA l