ML20086H250
| ML20086H250 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee, 05000000 |
| Issue date: | 10/27/1972 |
| From: | Riley B VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H243 | List: |
| References | |
| AO-50-271-72-09, AO-50-271-72-9, VYV-2304, NUDOCS 8401160146 | |
| Download: ML20086H250 (1) | |
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Y VERMONT YANKEE NUOLEAR POWER CORPORATION szvCNTY OcVCN OROVE STMcCT RurLAan. VenMONT 05701 many voi VYV-2304 P.o. sox is7 VERNON. VERMONT 05s54 October 27, 1972 United States Atomic Energy Comission Directorate of Regulatory Operations, Region 1 970 Broad Street Newark, New Jersey 07102
REFERENCE:
Operating License DPR-28 Docket No. 50-271 Abnormal Occurrence No. A0-72-09 Gentlenent Aa defined by Technical Specifications for the Vermont Yankee Nuclear Power Station, Section 6.7.A.c, we are reporting the following Abnormal Occurrence ao AO-72-09 and confirming our telephone conversation with your office on this date.
At approximately 3:00 p.tn. on October 26, during conduct of RCIC Surveillance Testing, two Barton steam line differential pressure switches (DPIS 13-83 and ~84) were found to actuate at >195" R 0.
This constitutes 2
a violation of the pressure set point specified in Table 3.2.2.3 of Technical Specifications, which requires actuation at a pressure of 180 + 15" H 0.
The reactor was at approximately 60% power at the time 2
of this occurrence.
The switches were imediately reset, functionally tested and verified to be operable within the tolerance specified. This remedial action was completed in a time span that precluded the necessity of further imediate action.
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UNITED STATES 8}.;
ATOMIC ENERGY COMMISSION DIVislON OF COMPLI ANCE 201 645 l*
l REGION I 970 BROAD STREET N E W A lt K.
NEW JERSEY 07102 i
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