05000316/LER-1984-003, Updated LER 84-003-01:on 840311 & 17,upper Containment Area Radiation Monitor VRS-2201(IL) Received High Alarm.Caused by Equipment Malfunction Due to Software Problems.New Software Installed

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Updated LER 84-003-01:on 840311 & 17,upper Containment Area Radiation Monitor VRS-2201(IL) Received High Alarm.Caused by Equipment Malfunction Due to Software Problems.New Software Installed
ML20090F123
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 07/16/1984
From: Kriesel T, Will Smith
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
NRC OFFICE OF ADMINISTRATION (ADM)
References
LER-84-003, LER-84-3, NUDOCS 8407200165
Download: ML20090F123 (2)
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LER-2084-003, Updated LER 84-003-01:on 840311 & 17,upper Containment Area Radiation Monitor VRS-2201(IL) Received High Alarm.Caused by Equipment Malfunction Due to Software Problems.New Software Installed
Event date:
Report date:
3162084003R00 - NRC Website
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text

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{ UPDATED LER

  • ,a PREVIOUS REPORT nnTc nd/nA/Rd

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LICENSEE EVEN f' REPORT (LER)

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  • AGE G DONALD C. COOK NUCLEAR PLANT UNIT 2 o i s l o l o I o 13 l 116 i lor l0 l 1 TITLEI.I ArTflATinN OF AN ENGINEERED SAFETY FEATURE EVENT DATE ISD LER NUMSER 14) REPORT DATE typ OTHER FAclLITIES INVOLVED (el MONTH DAY YEAR YEAR I' '"A

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= 4381 111n.1 30 Y3(.n3nant 90.734.nanal LICENSEE CONTACT FOR THIS LER 1921 gigg TELEPHONE NuMSER ARE A CODE T. A. KRIESEL - TECHNICAL PHYSICAL SCIENCES DEPARTMENT i 6,5, 6li i 6 4 i5 i 9 i0 l1 COMPLETE ONE LINE FOR E ACH COMPONENT F AILURE DEeCRetEO IN TMet REPORT (131 N C. REPORiA' O' CAU$8 SYSTEM COMPONENT "'yN yo pnOS CAUSE SYSTEM COMPONENT ""y"y "I

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ON MARCH 11,1984 AT 1149 HOURS, WITH THE REACTOR COOLANT SYSTEM IN MODE 5, THE UPPER CONTAINMENT AREA RADIATION MONITOR, VRS-2201 (IL), RECEIVED A HIGH ALARM THAT RESULTED IN AUTOMATIC ACTUATION OF THE ENGINEERED SAFETY FEATURE CONTAINMENT ISOLATION SYSTEM - TECHNICAL SPECIFICATION 3.3.2.1, TABLE 3.3-3, ITEM 3c (NOT REQUIRED IN MODE 5) - PURGE AND EXHAUST ISOLATION. THE CONTROL TERMINAL PRINT-OUT WAS +0.00E+00 mR/HR AT THE TIME OF THE HIGH ALARM. THE HIGH ALARM WAS CLEARED ON VRS-2201 BY G0ING TO ALARM "0FF" AND THEN BACK TO ALARM "0N" POSITION.

THIS RETURNED VRS-2201 TO NORMAL STATUS AND PURGE WAS THEN MANUALLY RESTARTED.

THE IDENTICAL SEQUENCE OUTLINED AB0VE OCCURRED FIVE ADDITIONAL TIMES: 1829, 2009 AND 2139 HOURS ON MARCH 11,1984, AND 0047 and 0937 HOURS ON MARCH 17, 1984.

AT THE TIMES OF ALL THE EVENTS, THE CONTROL TERMINAL PRINT 0UT READING WAS

+0.00E+00 mR/HR WHICH INDICATED THAT N0 HIGH AREA RADIATION LEVELS ACTUALLY EXISTED. IT HAS BEEN DETERMINED THAT THESE OCCURRENCES ARE THE RESULT OF EQUIP-MENT MALFUNCTIONS DUE TO SOFTWARE PROBLEMS WHICH WERE CORRECTED BY THE INSTALLATION OF NEW SOFTWARE AND VERIFIED TO OPERATE PROPERLY.

THIS LER IS BEING UPDATED DUE TO THE RESOLUTION OF THE SOFTWARE PROBLEMS ASSOCIATED WITH THE EBERLINE RADIATION MONITORING SYSTEM.

8407200165 840716 PDR ADOCK 05000316 PDR S

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v-e v'9 X,,, IN0 LANA & MICHIGAN ELECTRIC C0_MPANY DON ALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 (616) 465-5901 July 16, 1984 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Operating License DPR-74 Docket No. 50-316 Document Control-Manager:

In accordance with the criteria established by 10CFR50.73 entitled Licensee Event Reporting System, the following report /s are being submitted:

RO 84-003-1 Sincerely, VY. W~

W.G. Smith, Jr.

Plant Manager

/cbm Attachment cc: John E. Dolan J.G. Keppler,'RO:III M.P. Alexich R.F. Kroeger H. Brugger E.R. Swanson, RO:III R.C. Callen, MPSC G. Charnoff, Esq.

J.M. Hennigan R.O. Bruggee, EPRI INPO PNSRC J.F. Stietzel E.L. Townley Dottie Sherman, ANI Library V

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