05000298/LER-1979-012-03, /03L-0 on 790503:vessel Water Temp Increased to 220 F W/Primary Containment Integrity Not Established.Caused by Omission in Operating Procedures.Setpoint of Interlock Verified & Procedures Revised

/03L-0 on 790503:vessel Water Temp Increased to 220 F W/Primary Containment Integrity Not Established.Caused by Omission in Operating Procedures.Setpoint of Interlock Verified & Procedures Revised

ML19224D798
Person / Time
Site:	Cooper
Issue date:	05/30/1979
From:	Mike Williams NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19224D794	List: 05000298/LER-1979-012, Forwards LER 79-012/03L-0 05000298/LER-1979-012-03, /03L-0 on 790503:vessel Water Temp Increased to 220 F W/Primary Containment Integrity Not Established.Caused by Omission in Operating Procedures.Setpoint of Interlock Verified & Procedures Revised
References
LER-79-012-03L, LER-79-12-3L, NUDOCS 7907170057
Download: ML19224D798 (1)

LER-1979-012, /03L-0 on 790503:vessel Water Temp Increased to 220 F W/Primary Containment Integrity Not Established.Caused by Omission in Operating Procedures.Setpoint of Interlock Verified & Procedures Revised

Event date:
Report date:
2981979012R03 - NRC Website

text

, NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION M7 s71 LICENSEE EVENT REPORT cONTROLstoCx:

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EVENT DATE

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'S REPORT D ATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEOUENCES to ql Following reactor vessel in-servic;. eak test (hydro) during depressuri::ation, vessel ;

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water temperature exceeded 212 F with primary containment integrity not g

3 Operating persor.ael e.<perienced dif ficulty resetting RER interlock at 75 psig g

allowing the shutcown cooling mode of RHR to be placed in service.

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3 effect upon public health and safety.

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