05000315/LER-1980-024-03, /03L-0:on 800917,during Ice Condenser insp,21 Intermediate Deck Doors Found Frozen Shut.Caused by Excess Ice Due to Moisture Condensing on Top Deck Door Divider Beams.Design Change Initiated to Insulate Beams

/03L-0:on 800917,during Ice Condenser insp,21 Intermediate Deck Doors Found Frozen Shut.Caused by Excess Ice Due to Moisture Condensing on Top Deck Door Divider Beams.Design Change Initiated to Insulate Beams

ML17331A492
Person / Time
Site:	Cook
Issue date:	10/16/1980
From:	Piehl R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17319A656	List: 05000315/LER-1980-024, Forwards LER 80-024/03L-0 05000315/LER-1980-024-03, /03L-0:on 800917,during Ice Condenser insp,21 Intermediate Deck Doors Found Frozen Shut.Caused by Excess Ice Due to Moisture Condensing on Top Deck Door Divider Beams.Design Change Initiated to Insulate Beams
References
LER-80-024-03L-01, LER-80-24-3L-1, NUDOCS 8010210671
Download: ML17331A492 (2)

LER-1980-024, /03L-0:on 800917,during Ice Condenser insp,21 Intermediate Deck Doors Found Frozen Shut.Caused by Excess Ice Due to Moisture Condensing on Top Deck Door Divider Beams.Design Change Initiated to Insulate Beams

Event date:
Report date:
3151980024R03 - NRC Website

text

NRC FORM 366 U. S.

UCLEAR REGULATORY COMMISSION I7.77)

ICENSEE EVENT REPORT CONTROL BLOCK:

Qi (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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QB DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES 010 DURING AN ICE CONDENSER INSPECTION 21 INTERMEDIATE DECK DOORS WERE FOUND

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~O6 FROZEN AND DECLARED INOPERABLE PER T.S. 3.6.5.3.

ACTION REQUIREMENTS WERE MET.

THE OTHER 171 DOORS REMAINED OPERABLE.

THIS EVENTHAD, NO PUBLIC HEALTH AND SAFETY CONSEQUENCES.

PREVIOUS EVENTS INCLUDE:" RO 79-036/03L-0; 79-045/036-0; 79-060/03L-Op AND 80-021/03L-O.

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R URNI THE FROZEN DOORS TO AN OPERABLE CONDITION.

MOISTURE CONDENSING ON THE TOP DECK DOOR DIVIDER BEAMS WAS FOUND TO BE THE WATER/ICE SOURCE.

DESIGN CHANGE PER RFC DC 12-1791 WAS INITIATED TO INSULATE THE BEAMS TO PREVENT CONDENSATION.

ICE CONDENSER INSPECTION HAS BEEN'NCREASED FROM THREE TIMES WEEKLY TO DAILY.

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29 N/A NAME OF PREPARER ED 0 ~0 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY 9

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11 12 13 PERSONNEI. INJURIES NUMBER DESCRIPTION 41 9

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