ML20086H457
| ML20086H457 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 04/07/1972 |
| From: | Lawyer L VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H450 | List: |
| References | |
| NUDOCS 8401170166 | |
| Download: ML20086H457 (2) | |
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BAE M Teleeram mestern union V
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1115P EST APR 7. 72 PB003 KA604
.I K CVA353 PD VERNON VERMONT 7 NFT US ATOMIC ENERGY COMM DIRECTOR _ DIVN OF COMPLI ANCE REGION ONE 970 BROAD ST NEWARK NJER THIS WILL CONFIRM CONVERSATION AT 1510 HOURS THIS DATE WITH R A FIEL OF REGION ONE COMPLIA' ICE REGARDING A FAILURE OF SGTS FAN A TO START. AT 1615 HOURS.WITH THE RE ACTOR SHUT DOWN AND UNDER THE CONDITION THAT NEITHER SECONDARY CONTAINMENT NOR JE STAND BY GAS TREATMENT SYSTEMS REQUIRED IN ACCORDANCE WITH TECH SPECS ON 4-6-72 A LOW WATER LEVEL SIGN AL-WAS INITI ATED BY INSTRUMENTATION PERSONNEL WHILE PERFORMING MAINTENANCE WORK
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ON INSTRUMENTATION RACK 25-5 SGTS FAN A DID NOT START. FAN 58 B STARTED AND REACTOR BUILDING VENTILATION ISOLATED AS REQUIRED.
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1620 HOURS REACTOR BUILDING VENTILATION SYSTEM WAS RETURNEJ S$
TO NORMAL ATTEMPTS TO MANUALLY START FAN A WERE UNSUCCESSFUL.
I IN COURSE OF INVESTIGATION IMPOSED A DOWN SCALE TRIP ON REACTOR mm
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BUILDING VENTILATION MONITOR SYSTEM. NEITHER SGTS FAN STARTED.
2147 THERMAL OVERLOADS IN SGTS FAN MOTORS A AND B CHANGED f
FROM 41 TO 44 REPEATED ST ARTS ON EACH F AN WERE PERFCRMED WITH NO F AILURES 0200 4-7-72 SECURED FOUR HOUR. CONTINUOUS RUN FOR
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BOTH SGTS FANS AGAIN NO FAILURES WERE NOTED L L L AWYER VERMONT YANKEE NUCLE AR POWER CORP PO BOX 157 VERNON x
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