05000219/LER-1981-023-03, /03L-0:on 810603,drywell Vented to Reduce Drywell Torus Differential Pressure.Caused by Moisture Buildup in Sensing Line Resulting in Erroneous Indication of Increased Oxygen Concentration.Procedures Will Be Reviewed

/03L-0:on 810603,drywell Vented to Reduce Drywell Torus Differential Pressure.Caused by Moisture Buildup in Sensing Line Resulting in Erroneous Indication of Increased Oxygen Concentration.Procedures Will Be Reviewed

ML20009A668
Person / Time
Site:	Oyster Creek
Issue date:	07/06/1981
From:	Frederick Sullivan JERSEY CENTRAL POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009A665	List: 05000219/LER-1981-023, Forwards LER 81-023/03L-0.Detailed Event Analysis Encl 05000219/LER-1981-023-03, /03L-0:on 810603,drywell Vented to Reduce Drywell Torus Differential Pressure.Caused by Moisture Buildup in Sensing Line Resulting in Erroneous Indication of Increased Oxygen Concentration.Procedures Will Be Reviewed
References
LER-81-023-03L, LER-81-23-3L, NUDOCS 8107130458
Download: ML20009A668 (1)

LER-1981-023, /03L-0:on 810603,drywell Vented to Reduce Drywell Torus Differential Pressure.Caused by Moisture Buildup in Sensing Line Resulting in Erroneous Indication of Increased Oxygen Concentration.Procedures Will Be Reviewed

Event date:
Report date:
2191981023R03 - NRC Website

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60 61 DOCKET NUMB ER 68 69 EV E NT QATE 74 73 REPCRT QATE 80 Evsu r osSCRIPTION AND PRC8ASLE CCNSEQUENCES h 1 o t : L lOn June 3,1981, the drywell was vented to reduce drywell-torus differential l

g o,3 g l pressure belcw the value defined by 'Ibchnical Specifications figure 3.5-1.

I io ;4i lThe drywell was vented to reduce a drwell oxygen content of 4.75%.

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Iit2I I an erroneous oxygen indication. Procedures will be revieaed to address the

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Weekly News Releat (N9) 693-6037 Francis X. Sullivan