ML20024C406

LER 83-024/03L-0:on 830525,following Increased Count Rate on Containment Atmosphere Particulate Monitoring Sys R-11, RCS Unidentified Leakage Found Above Tech Specs.Cause Not Stated.Loop B Drain Valve Tightened

ML20024C406
Person / Time
Site:	Farley
Issue date:	06/22/1983
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20024C388	List: ML20024C387 ML20024C401 ML20024C406
References
LER-83-024-03L-01, LER-83-24-3L-1, NUDOCS 8307120594
Download: ML20024C406 (1)

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o l2 l l At 0610 on 5/25/83, following an increased count rate on containment atmosphere l 1013 l l particulate monitorinn system R-11. RCS unidentified leakane was determined to be l l o l 4 l l1.75 gpm per FNP-1-STP-9.0 (RCS Leakage Test) . Tech. Spec. 3.4.7.2, in part, l lol5l[ requires unidentified leakage to be limited to 1 npm. Tech. Spec. 3.4.7.2 action l l o l e l l statement requirements were met. Health / safety of the public was not affected. l l0l7ll l 1o1all l

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.. .. ., u a o u CAUSE DESCRIPTION AND CORRECTIVE ACTION 0 h l ' !a l l At 1513 on 5/25/83 the leakage was identified as being past the BCS "B" loop drain l l i l l l l valve into the reactor coolant drain tank.

The LCO was cleared and the "B" loop l l 1 l 2 l l drain valve was tightened. At 1925 on 5/25/83, the unidentified leakage was l l 1 l 3 l l determined to be .12 cpm. l 1114!! l

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NAME OF PREPARER W. C. Hairston. III PHONE. (205) 899-5156