ML20010H930

LER 81-049/03L-0:during 810802-07,increase Occurred in Offgassing from Core & Core Outlet Temps.Caused by Increased Primary Coolant Moisture & Oxidants from Refueling Shutdown

ML20010H930
Person / Time
Site:	Fort Saint Vrain
Issue date:	09/01/1981
From:	Mcbride L PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20010H926	List: ML20010H925 ML20010H930
References
LER-81-049-03L, LER-81-49-3L, NUDOCS 8109290423
Download: ML20010H930 (1)

Text

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NRC FORM X4 U. S. NUCLE AD I EGULATCY COMMISSION (7 77) *

• ' - P L!0ENSEE EVENT REPORT CONTROL BLOCK: l i

l l l l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFOIMATliN) lo lil8 9lc lo Ir Is lv li l@l ol ol l ol of of ol ol l of ol@l al ilLICENSE 7 UCENSEE CODE le IS L CENSE NUMSER 25 26 1121 ol@l57 CAT TYPE JG i

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CON'T loIiI 3 uRCE ILhl0151010 10 12 !6 17 @l6901 Sl 68 0 l 2 l 81 1hd.j_0 EVENT DATE 74 75 l1 l 81 180l@

PEPORT DATE 7 8 60 61 DOCKET NUMBER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCE.S h t o 121 l Durint the oeriod from August 2.1981, to Augus t 7.1981. the plant was operated in I These events are reportable per g l a degraded mode cf L,CO 4.2.10 on three occasions. l l o 141 l Fort St. Vrain Technical Specification AC 7.5.2(b)2. No accocipanying occurrence. No l

[ois) i effect on public health or safety. Similar repot3s 'to 81-009,81-015, 81-020, and l l

l o i s 1 I 81-02 7.

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LER O agao su g 18111 21 22 Lj 23 1014191 24 26

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47 44 47 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS h l i t o l l The increascd primary coolant moisture and orf.dants from the refueling shutdown per- l gl iod resulted in increased off-gassing from the core when the. plant returned to power i and core outlet temperatures weru elevate d. The primary coolant purification system I ggl i , ,3 g l was util2 zed to restore primary coolant uxidant levels to acceptable limits. l l

l i l41 ! 80 7 8 9

% POWER OTHER STATUS DIS O Y DISCOVERY DESCRIPTION ST l i i s_] l E ih l0 l4 11 lhi N/A I I A lhl primarv Coolant Chemisttv Analysis I 4CT1vtry CO TENT RcLEASED OF RELEASE AMOUN f OF ACTIv1TV LOCATION OF RELEASE Ii_LJ l z ] @ ' l zl@l n/A I I N/a I PERSONNEt ExPOSuEe3 NuM8eR cESCRiPrioN @

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PE RSoNN E'L'tNJU' IES NU4 8ER DESCRtPTION lW l 0 l 0 j o l@l N/A l 80 7 8 9 11 12 LOSS oF oR DAMAGE To FACILITY TYPE DESCRIPTION i 9 N/A l

@l PususTv c 8109290423 810901 NRc usE oNLY iSSuEo PM ADOCK 05000267

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PDR 10 68 89 80 g 7 8 9

• • PHONE: ( 30 3) 785-2224 2 NAME OF PREPAREi1 --_---

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