05000315/LER-1979-034, /03L-0 on 790705:during Plant Tour,Two Ice Condenser Intermediate Deck Doors Were Found Frozen Shut. Cause Not Determined.No Further Action Planned.Formerly Numbered Incorrectly as LER 79-034/03L-0

/03L-0 on 790705:during Plant Tour,Two Ice Condenser Intermediate Deck Doors Were Found Frozen Shut. Cause Not Determined.No Further Action Planned.Formerly Numbered Incorrectly as LER 79-034/03L-0

ML17317B412
Person / Time
Site:	Cook
Issue date:	07/31/1979
From:	Michael Brown INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B411	List: 05000315/LER-1979-034, /03L-0 on 790705:during Plant Tour,Two Ice Condenser Intermediate Deck Doors Were Found Frozen Shut. Cause Not Determined.No Further Action Planned.Formerly Numbered Incorrectly as LER 79-034/03L-0 05000315/LER-1979-035-03, /03L-0 on 790705:while Cleanup of Demineralized Water Sys Was in Process,Rcs Passed from Operational Mode 5 to Mode 4 & Isolation Valves Closed.Caused by Breakdown of Communication Between Cleanup Crew & Reactor Operator ML17317B410
References
LER-79-034-03L-02, LER-79-34-3L-2, NUDOCS 7908060422
Download: ML17317B412 (1)

LER-1979-034, /03L-0 on 790705:during Plant Tour,Two Ice Condenser Intermediate Deck Doors Were Found Frozen Shut. Cause Not Determined.No Further Action Planned.Formerly Numbered Incorrectly as LER 79-034/03L-0

Event date:
Report date:
3151979034R00 - NRC Website

text

NRC FORM 366 (7.77)

U. S. NUCLEAR REGULATORY COMMISSION tL[CENSEE EVENT REPORT

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LICENSEE CODE QI

{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATIONI 6

'Q2' 14 15 LICENSE NUMBER Q3 0

1 1

1 1 Q4~

Qs 25 26 LICENSE TYPE30 57 CAT 58 TO BE FROZEN SHUT.

THIS CONSTITUTES AN INOPERABLE INTERMEDIATE DECK DOORDELINEATED IN TECH.

SPEC. 3.6.5.3.

THE ICE WAS CHIPPED OFF AND THE DOORS WERE RETURNED TO AN OPERABLE STATUS.

PUBLIC HEALTH AND SAFETY WERE NOT JEOPARDIZED.

NO PREVIOUS EVENTS OF THIS NATURE ARE KNOWN.

LQB 0

5 0

0 0

3 1

5Q7 0

7 0

5 9QBO 7

3 1

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QB 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES QIO DURING A PLANT TOUR, TWO ICE CONDENSER INTERMEDIATE DECK DOORS WERE FOUND

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3 80 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCOOE COMPONENT CODE SUBCODE SUBCOOE

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LERIRP EVENT YEAR REPORT NO.

CODE TYPE NO.

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LUs Ltl U0 21 22 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDA PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER Q16 ~ZQIB

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0 Q26 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 THE CAUSE OF THE ICE BUILDUP ON THE INTERMEDIATE DECK DOORS COULD NOT B

DETERMINED.

NEIGHBORING AIR CHILLERS WERE OPERATING PROPERLY.

NO FUTURE ACTIONS ARE PRESENTLY PLANNED.

METHOD OF DISCOVERY DISCOVERY DESCRIPTIQN Q32 PLANT TOUR LAJQ>>

45 46 I-OCATIONOF RELEASE Qe N/A 45 90806cqn NRC USE ONLY 4

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9 FACILITY STATUS gg POWER OTHER STATUS QBO COs 0

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9 10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ

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N/A 7

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10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION A3

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11 12 13 PERSONNEL INJURIES 7

8 9

11 12 LOSS OF OR DAMAGE TO FACILITYQ43 TYPE

DESCRIPTION

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8 9, 10 PUBLICITY ISSUED DESCRIPTION~

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9 IO 80 80 80 80 80 80 NAME OF PREPARER M.S, BROWN 68 69 BO o PHQNE 616 465 5901P EXT 398