05000324/LER-1985-001, :on 850110,record File Verification of Plant Surveillance Test Scheduling & Tracking Sys Revealed Periodic Test Not Performed.Caused by Inadvertent Deletion from Data Base.Logging Program Instituted

:on 850110,record File Verification of Plant Surveillance Test Scheduling & Tracking Sys Revealed Periodic Test Not Performed.Caused by Inadvertent Deletion from Data Base.Logging Program Instituted

ML20128M007
Person / Time
Site:	Brunswick
Issue date:	07/12/1985
From:	Dietz C, Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
BSEP-85-0512, BSEP-85-512, LER-85-001, LER-85-1, NUDOCS 8507250169
Download: ML20128M007 (4)

LER-1985-001, on 850110,record File Verification of Plant Surveillance Test Scheduling & Tracking Sys Revealed Periodic Test Not Performed.Caused by Inadvertent Deletion from Data Base.Logging Program Instituted

Event date:
Report date:
3241985001R00 - NRC Website

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H. J. Pantva, Jr., Regulatory Technician 91119 415 171-12 111115 connetste one time son sacH cons.o.neset pastume oestmeco ese twee mesent nse apo],f,a Caute tv 8?tw C088Po4897

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On 01/10/85, a routino intnrnal record filn vnrification of the plant l

Survoillanco Tont Schmluling and Tracking System (STSTS) rovanlmi thn channni calibration and functional tant of thn Unit 2 main condonnor low vacuum Instrumentation had not bonn performmt within thn spncif tml monthly aurvuillanco intnrval for tha period of 12/09/84 through 12/16/84. Aftnr this I

dincovery, thn nubject tont, periodic tnut, PT A23, was antisfactority parformnd, vorifying opornbility of tho involvnd instrumentation.

l 2-D21-PTil N056A 1, B-1, C 1, and D 1.

Thonn instrumnnta enunn an automatic closurn of tha unit ranctor main atonm linn inolnLion vntvnn on low vacuum in thn unit main condannnr.

From 12/16/84 through 01/10/85 Unit 2 was in roactor shutdown, startup, and at pownr opnration at various rnnpoctive timen.

Thn minnm! pnrformancn of PT A23 ronutted f rom inndynrtent dnintion of tho PT rncord from thn STSTS computnr data bnno.

A dnfinitiva counn of thn dnlation was not datnrminmi.

A rnview of rmpitrmi rncord entrinn did not rnycal nntrinn which could havn rnnultml in thn daintien of PT A23 for Unit 2.

A comparinon of thn ST8TS data bann with tha procedurn to tho technical apncification crown rnfernnen showed no additional rncords havn bonn doloted which could rnnult in future noncomptinnen through lack of pnrformanco schnduling.

A program for daily comparison and logging of currnnt to thn previous day's numbor of HTHTH rncords wan institutod to hnip onnurn einlations and additions of STSTS rncords arn accountml for.

f.nhancomnnts to tha existing audit trail for indapandent chocks of accuracy in STST8 data nntrinn havn boon intLinted to allow morn offnctivo reviewn and a bottnr mnchaninm to parform ST3TS record number vartfications.

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On January 10, 1985, it was datormined required channel calibration and functional testing of the Unit 2 main condonsor low vacuu:n instrumentation had l

not bnen performed within the speciflod monthly survoillance interval for the period of December 9,1984, through December 16, 1984. This datormination was mado during a routino internal audit and record filo verification of the plant STSTS. Following this discovery, the subject test, periodic test, PT-A23, was satisfactorily performed, thereby verifying operability of the involved instrumentation, 2-D21-PTM-N056A-1, B-1, C-1, and D-1.

Those instrumonts causo automatic closura of the unit main steam lino isolation valvos on low vacuum in the unit's main condonsor. Unit 2 was in reactor shutdown, startup, and at pownr operation at various respectivo times from December 16, 1984, through January 10, 1985.

A review of required STSTS record entrios was porformed to datormina whether entrinn axisted which could havn resulted in the subject dolation of PT-A23.

In addition, a detailed ruview of tho involved computnr program was parformed to dotnrminn if a computer sof twaro failure may have boon involved with the deletion. Thema roviews failed to rovnal a dofinitivo couno for the dolution.

The invnstigation of this event concludod thn missed performanco of PT-A23 l

resulted from an inadvertent deletion of the PT record from the STSTS computer data bano.

A comparison of the STSTS data base with the proceduro to tho technical specification cross refornnce was performnd which showed additional rncords wara not dninted which could result in tuchnient specification noncomplianco i

duo to lack of pnrformanco scheduling.

A program for daily comparison and I

logging of currnnt to thn prnvious day's numbnr of STSTS rncords was institutod.

It in fnit this will holp onsuro STSTS record daintions and additions arn bettnr accounted for.

In addition, thn following changns havn bocn modo to improva the existing audit trail for indopnndent chocks of accuracy in STSTS nntrios and dotationn and to aid in monitoring plant nymtom paramotorn which may affect survoillanen nchnduling:

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Rncord Tally Thn curront rncord to total in the computar data bann is comparnd with tha total from thn prnvioun tally (plun all rncords addnd minun all rncords nrannd nincn thn previous tally).

All tally valunn arn dinplayed.

If thn tally volunn do not nurno, a warning monnagn in displaynd and thn audit program aborts, thornby returning to thn computar pnrformanen updato modulo mnnu.

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S_chedulo Flag Tally The number of computer records with a schedulo flag or a stop flag at the last tally is compared with the number of records in the curront data baso having those flags. All tally values are displayed.

If the tally values do not agren, a warning massage is displayed.

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Freepinney Tally b

The number of computer records that have a nonblack value in the field frequenr.y at the last tally is compared with the number of records in the current data base with a nonblank entry. All tally values are displayed.

If the tally values do not agroo, a warning message is issued.

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e Cp&L Carolina Power & Light Company Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461-0429 July 12, 1985 FILE: B09-135100 SERIAL:

BSEP/85-0512 NRC Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT UNIT 2 DOCKET NO 50-324 LICENSE NO. DPR 62 REVIS10N 1 TO LICENSEE EVENT REPORT 2-85-001 Gentlemon In accordance with Title 10 to the Codo of Federal Regulations, the enclosed l

revised Licennoo Event Report is submitted. The original report l

fulfilled the requiremont for a written report within thirty (30) days of a reportable occurrence and was submitted in accordance with the format sat forth in NUREG 1022 September 1983.

Very truly yours, I

C. R. blots Conoral Manager Brunswick Steam Electric Plant HJP/dg Enclonura cc: Dr. J. N. Grace i

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