ML20028F288

LER 83-001/01T-0:on 830101 & 02,reactor Operated W/O Min Number of Operable Moisture Monitor Channels Required Per Table 4.4.1 of Limiting Conditions for Operation.Caused by Personnel Misinterpretation of Tech Specs

ML20028F288
Person / Time
Site:	Fort Saint Vrain
Issue date:	01/17/1983
From:	Fuller C PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20028F282	List: ML20028F279 ML20028F288
References
LER-83-001-01T, LER-83-1-1T, NUDOCS 8301310344
Download: ML20028F288 (2)

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NT.C FO'M 366 U. S. NUCLEAR REIULATcf.Y COMMISSION (7 77)

- LICENSEE EVENT REPORT

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60 68 69 EVENT DATE 74 75 REPORT DATE 80 7 8 61 COCKET NUM8ER EVENT DESCRIPTloN AND PROB ABLE CONSEQUENCES to r31 n l Un January 3,1983, while operating a 30% thermal power, it was determined that l

,o,3,  ; during the period 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, January 1,1983, to 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />, January 2,1983, the g o ,  ; reactor was operated without the minimum number of operable moisture monitor channels l g , as required per Table 4.4.1 of LC0 4.4.1. As this event exceeded 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> without the; pg.Ts'l I reactor being shutdown, it is reportable per AC 7.5.2(a)6 of the Fort St. Nrain Tech i g ; nical Specifications. No effect on public health or safety. Similar reports: RO's l g

, o g , , 78-08, 78- 13, and 78-40.

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42 4 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 i o lDue to an erroneous interpretation of Table 4.4-1 of LC0 4.4.1, concerning the mini- l g gmum number of operable moisture monitor channels, proper corrective actions were not i

,taken. The operating staff was reinstructed on the severity of misinterpretation of i

, ,  ; Technical Speci fications. A Technical Specification change will be submitted to j g

clarify Note (f) in LCC 4.4.1 and prevent future occurrences of this type. No furtheri 8'

! 8,9ggective c action is anticipated M regghp4 eiscovERv oiscovERv oEs:RirTiON seOwfR OTNER status V3 l

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7 8 9 to 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION l

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l 7 8 9 10 8(J E @DE N/ACRIPTION l lllllllllllllj 2 o IS[S l 68 69 80 3 7 8 9 to NAME OF PREPARER E E PHONE:

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I JANUARY 3, 1983 MR. JUHN 1. COLLiflS, REGIONAL A9MINISTRATOR REGION IV NUCLEAR REGULATORY CO'4 MISSION bil RYAN PLAZA DRIVE SUITE 1000 ARLINGTON, TX 76011 Ofl MONDAY, JANUARY 3,1983, AT APPROXIMATELY 0900 HOURS, WHILE THE PLANT WAS OPERATING AT 30" THERMAL POWER, IT WAS DEIERMINED THAT DUE TO AN ERR 0NE0US INTERPRETATION OF NOTES (c) and (f) FOR TABLE 4.4-10F LC0 4.4.1. THE NINIMUM HUMBER OF OPERABLE M0ISTURE MONITOR CHANNELS WERE NOT OPERABLE FOR A DURATION EXCEEDING 12 HOURS WITHOUT THE REACTOR BEING SHUT DOWN. THIS EVENT OCCURkiD DURING ROUTINE STARTUP UPERATIONS FROM APPR0XIMATELY 0700 HOURS ON JANUARY 1,

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1983, TO APPR0XIMATELY 0200 HOURS ON JANUARY 2, 1983. THERE WAS NO EFFECT UN THE HEALTH AND SAFETY OF THE PUBLIC. A FOLLOWUP REPORT WILL BE SUBMITTED WITHIN 14 DAYS.

fHIS EVENT IS REPORTABLE PER FORT ST. VRAIN TECHNICAL SPECIFICATION AC 7.5.2(a)6 AS REPORTABLE OCCURRENCE NO. 50-267/83-001/01-T-0.

PLEASE CONFIRM RECE1PT OF THIS fRANSMITTAL BY CALL BACK TO CHUCr FULLER AT (303) 78S-2224, EXTENSION 270.

LHARLES H. FULLER PlBLIC SERVICE COMPANY OF COLORADO FORT ST. VRAIN NUCLEAR GENERATING STATION 16805 WELD LOUNTY R0AQ.191/2 PLATTEVILLE, COLORADO 80651-9298

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