ML19208A768

LER 79-037/03L-0:on 790812,A&B Control Room Intake Air Radiation Monitors a & B Failed Downscale.Caused by Transistor Circuit Failure within Monitors.Monitor a Replaced & Monitor B Repaired

ML19208A768
Person / Time
Site:	Peach Bottom
Issue date:	09/11/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-79-037-03L, LER-79-37-3L, NUDOCS 7909170444
Download: ML19208A768 (1)

Text

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This L.E.2. re fers o failure of tra control room intake air radiation monitors. The gove rning Technical Specifica tion is 3.11. A.5.

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At power Jurin:: a routine surveillance test the A and 3 control room a

intake air radiation onitors failed downscale. The systen ome rated I i

,4 correctly to isolate control room ventilation. The emergency ventilatten  ;

system was placed in ora r ition. Both monitors were restored to serfice 6 ,

within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. There wa s =inimal sa fety significance since all appropriate systems functioned correctly and no radiation hazard existed. ,

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