05000324/LER-1981-088-03, /03L-0:on 810811,primary Containment Atmospheric Oxygen Analyzer 2-CAC-AT-1263,Model F3M3,was Found Out of Calibr & Could Not Be Recalibr.Caused by Moisture Accumulation in Electromagnetic Unit.Unit Replaced

/03L-0:on 810811,primary Containment Atmospheric Oxygen Analyzer 2-CAC-AT-1263,Model F3M3,was Found Out of Calibr & Could Not Be Recalibr.Caused by Moisture Accumulation in Electromagnetic Unit.Unit Replaced

ML20010F135
Person / Time
Site:	Brunswick
Issue date:	08/27/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010F130	List: 05000324/LER-1981-088, Forwards LER 81-088/03L-0 05000324/LER-1981-088-03, /03L-0:on 810811,primary Containment Atmospheric Oxygen Analyzer 2-CAC-AT-1263,Model F3M3,was Found Out of Calibr & Could Not Be Recalibr.Caused by Moisture Accumulation in Electromagnetic Unit.Unit Replaced
References
LER-81-088-03L, LER-81-88-3L, NUDOCS 8109090406
Download: ML20010F135 (2)

LER-1981-088, /03L-0:on 810811,primary Containment Atmospheric Oxygen Analyzer 2-CAC-AT-1263,Model F3M3,was Found Out of Calibr & Could Not Be Recalibr.Caused by Moisture Accumulation in Electromagnetic Unit.Unit Replaced

Event date:
Report date:
3241981088R03 - NRC Website

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- NRC F ORM 366 U.S. NUCLEAR REGULATORY C,OMMISS:DN (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK:

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60 61 DOCK ET NUMBER Gs 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h I O l 2 l l While performing a peric.dic calibration check on primary containment atmospheric l

l oxygen analyzer, 2-CAC-AT-1263, Model No. F3M3, it was found that the analyzer was outl o 3 l of calibration and could not be recalibrated. While the analyzer was inoperable the l o 4 lo[sl l other primary containment atmospheric analyzer, 2-CAC-AT-1259-2, became inoperable on l l O ls l l 8-12-81 (which is reported in LER 2-81-87), and an crderly reactor shutdown was com-l 10171 l menced in accordance with technical specifications. This event did not affect the l

l O l a 1 I health and saf ety of the public.

Technical Specifications 3.3.5.3, 3.6.6.4, 6.9.1.9bl 80 7

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, - co LER ATI'ACHMENT - RO # 2-81-88 Facility: BSEP Unit No. 2 Event Date: 8-11-81 This event cccurred as a result of moisture accumulation in the electromagnetic unit of the 1263-2 analyzer which preven;ed adjustment of th, unit ancf a the calibrat ton of the analyzer. As presently designei, the analyzer sample piping configuration allot,a excess moisture to build up in the piping and components it comes in contact with; in this case the electromagnetic unit.

Due to a history of similar events resulting f rom m.vture and component failure problems, a plant modification has been developed to replace these type analyzers with others of a more reliable design. In addition, the sample piping to these analyzers will be raodified to climinate the sample flow moisture p rob l en,.