ML19344D283

Revised 80-004/03L-1:on 800123,during Routine Tech Spec Review,Radiation Monitor Setpoints Found Less Conservative than Mode 6 Requirements.Caused by Personnel Error.Change Added to Mode 6 Checklist

ML19344D283
Person / Time
Site:	Beaver Valley
Issue date:	03/04/1980
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19344D281	List: ML19344D280 ML19344D283 ML19344D285 ML19344D288 ML19344D290 ML19344D294 ML19344D296 ML19344D302
References
LER-80-004-03L, LER-80-4-3L, NUDOCS 8003110632
Download: ML19344D283 (2)

Text

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2 VENT OESCRIPTICN AND PROR ABLE CONSEQUENCES h l o 121 l Radiation monitor setpoints less conservative than those reouf red in Mode 6 (< 14, l 1

toi3t]RCS Temp) during refueling operations. The reactor vessel head studs were 1

[TTR [detensioned but no other evolutions had taken place. The problem was disenvered I l o i s i Idurinc a routine technical specification review. The instruments involved are l ,

l o u i IContainment Area Monitors RM-215A.il and Purne Exhaust Prneess Monitors RM-VS-104A.11. l l 0 ( 7 l lThe setpoints were approximately a decade high but the instruments were operable in I toi3! l respect to their intended function. Therefore, there were no (continued on attached)l80 1 8 9 COV8 VALVE SY ST E *.i CAUSE CAUSE COOE COOE SLuCODE COUPONENT COOE SUSCOOE SU8 CODE 10l+1 I B I A l@ ( A j@ l X l@ l Z l Z l Z l Z [ 7. l 7. l@ l Z l@ l Z 20 1@

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44 47 43 3s 40 42 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS h l3 lojIPersonnel error. It was not readily apparent that this chance was to be effective l l tillso it was not added to the Mode 6 (RCS Temp < 140F) checklist. The channo has now I

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12-643-1253 NAVE OF PREPARER

t' Attachment To I.ER 80-O'./01L-1 Ileaver Va I ley I'ower St at ion .

Duquesne Light Company Docket No. 50-33'.

Event Description And Probable Consequences (continued) implications to the health and safety of the general public.

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