ML20085D296

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Telecopy Ao:On 721105,power Operated Release Valve UR-2 Was Opened & Failed to Close.Ltr to Be Forwarded within 10 Days
ML20085D296
Person / Time
Site: Robinson 
Issue date: 11/06/1972
From: Furr B
CAROLINA POWER & LIGHT CO.
To: Jennifer Davis
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20085D244 List:
References
NUDOCS 8307210110
Download: ML20085D296 (1)


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946A EST NOV 6 72 AA030 AAA071(0920)(1-002754C311)PD 11/06/72 0920 g

ICS IPMCMAA CLB 2C2C 023 NL COLUMBIA SOCAR 117 11-05 S54P EST Ol PMS JOHN DAVIS DIRECTOR REGION 2 AEC DIVISION OF REGUL ATORY SERVICES O

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AT 0333,11/5/72 WITH THE PL ANT AT HOT SHUT DOWN CONDITION, POWEtt OPER ATED RELEASE VALVE (UR-2) WAS OPENED BY THE OPER ATOR AND q'

FAILED TO CLOSE. WITH RU-2 IN A FAILED OPEN POSITION, THE PLANT WAS BORATED VIA EMERGENCY BORATION AND SAFETY INJECTION 1722 PPM BORON. THE PLANT WAS COOLED TO A COLD SHUTDOWN CONDITION

'I VI A NORM AL PROCEDURES EXCEPT TOR RU2 BLOWING CONTINUOUSLY. NO SATETY LIMITS OR COOL DOWN RATES WERE EXCEEDED DURING THE C00LD0tlN. MR DICK CUBETT, AEC, REACTOR INSPECTOR, WAS CALLED AT 1930 ON 11/5/72 AND eF 1201 (R549)

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INFORMED OF THE INCIDENT. A LETTER WILL BE FORWARDED TO AEC-DRL WITHI 1

N 10 DAYS. THIS ABNORMAL E CUDANCE IS REPORTED,IN ACCORDANCE WITH 6.6.1.C OF THE TECHNICAL SPECIFICATIONS B J TURR, PLANT MANAGER 8F.1201 (RSO9)

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