05000317/LER-1980-068-03, /03L-0:on 801210,control Room Air Conditioning Unit 12 Heaters Found Defective,Rendering Unit Inoperable. Caused by Failure of Heating Elements.New Heating Elements Installed & Unit Returned to Svc

/03L-0:on 801210,control Room Air Conditioning Unit 12 Heaters Found Defective,Rendering Unit Inoperable. Caused by Failure of Heating Elements.New Heating Elements Installed & Unit Returned to Svc

ML19351F645
Person / Time
Site:	Calvert Cliffs
Issue date:	01/09/1981
From:	Lagiewski J, Pence W BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19351F641	List: 05000317/LER-1980-068, Forwards LER 80-068/03L-0 05000317/LER-1980-068-03, /03L-0:on 801210,control Room Air Conditioning Unit 12 Heaters Found Defective,Rendering Unit Inoperable. Caused by Failure of Heating Elements.New Heating Elements Installed & Unit Returned to Svc
References
LER-80-068-03L, LER-80-68-3L, NUDOCS 8101130623
Download: ML19351F645 (1)

LER-1980-068, /03L-0:on 801210,control Room Air Conditioning Unit 12 Heaters Found Defective,Rendering Unit Inoperable. Caused by Failure of Heating Elements.New Heating Elements Installed & Unit Returned to Svc

Event date:
Report date:
3171980068R03 - NRC Website

text

U. S. NUCLEAR REGULATCOY COMMISSION NRC FORM 364 (7 77!

UCENSEE EVENT REPORT O.

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A 60 61 OOCKET NUMSER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT oESCRIPT1oN ANo pro 8ABLE CONSEQUENCES h Io l2l l At 1635, durino normal ooeration, it was discovered that #12 Control I

Room Air Conditioning Unit heaters were defective rendering the unit l

g o i3, l io ni i inoperable (T.S. 3.7.6.1.b).

1. 12 Control Room Air Conditioning Unit 1

was returned to service at 2100 on 12-12-80. #11 Control Room Air i

io isi l Conditioning Unit remained ooerable throughout this event. Unit 2 was I

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at 73% of oower. This is not a repetitive occurrence.

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33 34 35 38 37 40 41 42 43 44 47 CAUSE oESCRIPT1oN AND CORRECTIVE ACTIONS h Ii io l I A check was made of #12 Control Room Air Conditionino Unit and the heat-I ii ii i l ing elements were found to have failed. New heatino elements were in-I li # 21 I stalled and the unit returned to service.

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