05000324/LER-1980-109-03, /03L-0:on 801215,primary Containment Atmospheric Monitor 2-CAC-AT-1259 Tripped Due to Low Sample Flow.Caused by Moisture in Monitor Pressure Regulator & Photohelic Unit. Moisture Removed & Photohelic Unit Replaced

/03L-0:on 801215,primary Containment Atmospheric Monitor 2-CAC-AT-1259 Tripped Due to Low Sample Flow.Caused by Moisture in Monitor Pressure Regulator & Photohelic Unit. Moisture Removed & Photohelic Unit Replaced

ML19340F051
Person / Time
Site:	Brunswick
Issue date:	01/09/1981
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19340F030	List: 05000324/LER-1980-109, Forwards LER 80-109/03L-0 05000324/LER-1980-109-03, /03L-0:on 801215,primary Containment Atmospheric Monitor 2-CAC-AT-1259 Tripped Due to Low Sample Flow.Caused by Moisture in Monitor Pressure Regulator & Photohelic Unit. Moisture Removed & Photohelic Unit Replaced
References
LER-80-109-03L, LER-80-109-3L, NUDOCS 8101160581
Download: ML19340F051 (2)

LER-1980-109, /03L-0:on 801215,primary Containment Atmospheric Monitor 2-CAC-AT-1259 Tripped Due to Low Sample Flow.Caused by Moisture in Monitor Pressure Regulator & Photohelic Unit. Moisture Removed & Photohelic Unit Replaced

Event date:
Report date:
3241980109R03 - NRC Website

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o 3 I tripped due to low sample flow. This same event also occurred Januarv 1 and 2, 1981.I l This monitor has a historv of similar events involving sample flow. This event did I

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LER ATTACINENT - RO # 2-80-109 Facility:

BSEP Unit No. 2 Event Date: 12-15-80 An inspection of the other CAC monitors on both units has revealed that high moisture in the sample lines to these monitors. is presently affecting the sensitivity of the monitor's photohelic units.

Tn order to maintain reliable operation of the CAC monitors, they are presently <;hecked for proper operation on a daily basis and replace-ment photchelic units are on order should any of the monitors experience photchelic failures in the future. Due to a history of similar problems involving these moni-tors they will be replaced with others of a more reliable design during the next scheduled refueling outage.

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