05000267/LER-1979-045-03, /03L-0:on 791008,primary Coolant Oxidants Exceeded 10 Parts Per Million W/Average Core Outlet Temp Greater than 1,200 F.Caused by Residual Moisture Outgasing Due to Dryer Bypass.Load Decreased & No Corrective Action Required

/03L-0:on 791008,primary Coolant Oxidants Exceeded 10 Parts Per Million W/Average Core Outlet Temp Greater than 1,200 F.Caused by Residual Moisture Outgasing Due to Dryer Bypass.Load Decreased & No Corrective Action Required

ML19210C430
Person / Time
Site:	Fort Saint Vrain
Issue date:	11/07/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210C429	List: 05000267/LER-1979-045, Forwards LER 79-045/03L-0 05000267/LER-1979-045-03, /03L-0:on 791008,primary Coolant Oxidants Exceeded 10 Parts Per Million W/Average Core Outlet Temp Greater than 1,200 F.Caused by Residual Moisture Outgasing Due to Dryer Bypass.Load Decreased & No Corrective Action Required
References
LER-79-045-03L, LER-79-45-3L, NUDOCS 7911140241
Download: ML19210C430 (6)

LER-1979-045, /03L-0:on 791008,primary Coolant Oxidants Exceeded 10 Parts Per Million W/Average Core Outlet Temp Greater than 1,200 F.Caused by Residual Moisture Outgasing Due to Dryer Bypass.Load Decreased & No Corrective Action Required

Event date:
Report date:
2671979045R03 - NRC Website

text

NRC FpRM 366 w. a. mucLean neuvem un e cumnissaiva (7 77) ~

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8 60 61 DOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PRCB ABLE CONSEQUENCES h o

2 l On four occasions between October 8.1979. and October 15. 1979. oricarv coolant o,ci-I l dants (sum of water, carbon dioxide, and carbon mo toxide) exceeded 10 carts per I

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This is operation l l under a degraded mode permitted by LCO 4.2.10 and is reportable per Technical Specifi-l.

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o is l cation AC 7.5.2(b)2.

No affect on public health or safety. Similar occurrences re-l 0l7 l ported in RO 77-36, 78-12, 78-18, 78-37, 78-39, 79-01, 79-02, 79-24, and 79-30.

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2 l core outlet temperature and/or moir ture levels were the cause of dnerndad ~nda neo-e-1 3 l tion.

No specific corrective action was reauired.

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