ML20024D009

LER 83-033/03L-0:on 830603,fire Detection Instrumentation in Containment Southeast Electrical Penetration Determined Inoperable.Repair Impossible Due to Inaccessability of Protecto wire.W/830708 Ltr

ML20024D009
Person / Time
Site:	Calvert Cliffs
Issue date:	07/08/1983
From:	Basso L, Junge M, Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-83-033-03L, LER-83-33-3L, NUDOCS 8307210287
Download: ML20024D009 (2)

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o2 l At 0650 durin_g normal operation. Fire Detection instrumentation in the l l 013 l l Containment south east electrical penetration area was determined to be l lo 14 l l inonerable. Containment air temperature is being monitored once per hour l 0 5 l as required by Technical Specification 3.3.3.7. Redundant fire protec- l 10le[] rinn svsromm rnnnined operable during the event. l l0l7ll Similar events: none. l W '=." n': .=m. .....N. ,.... .::m. .:m:.

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u u CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h FRl Electrical leads for this fire detector have been temporarily lifted. l l1l1ll The Protecto wire has not been repaired due to inaccessibility. An in- l l 112 l l ventigation will commence durine the next shutdown and an update l 1 3 l report will be submitted. l 1 4 I I "lT A T /.' srOw.R OTN.R .T ATu.

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8307210287 830709 PDR ADOCK 05000317 NRC USE ONLY T"

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NAME OF PREPARER M. A. Junce/f_ F. Rnamn PHONE: 301-269-4969/4933

} ". O O B ALTIMORE G AS AND ELECTRIC COMPANY P.O. H O X 1475 H A LTIM OR E. M A R Y L A N D 212 0 3 NUCLEAR POWER DEPARTMENT C A LVER T CLIF P S NUCLE A R POWE R PLANT LU5HY, M ARYL AND 20657 July 8, 1983 Dr. Thomas Murley Docket No. 50-318 Regional Administrator License No. DPR 69 U. S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406

Dear Dr. Muricy:

Attached is LER 83-33/3L, as required by Technical Specification 6.9.

If you have any questions regarding this report, we would be pleased to discuss them with you.

Very truly yours, M

h L. B. Russell Plant Superintendent LBR:LFB:bsb cc: Director, Office of Management Information and Program Control Messrs: A. E. Lundvall, Jr.

J. A. Tiernan

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