05000278/LER-1979-025-03, /03L-0:on 790829,during Tests,Reactor Vessel Relay 2E-K18 Failed.Caused by Worn Contact on GE Hfa Relay.Logic Channel Placed in Tripped Conditon & Relay Will Be Replaced During Refueling & Maint Outage

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/03L-0:on 790829,during Tests,Reactor Vessel Relay 2E-K18 Failed.Caused by Worn Contact on GE Hfa Relay.Logic Channel Placed in Tripped Conditon & Relay Will Be Replaced During Refueling & Maint Outage
ML19209A296
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 09/28/1979
From: Cooney M
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-79-025-03L, LER-79-25-3L, NUDOCS 7910030486
Download: ML19209A296 (1)


LER-1979-025, /03L-0:on 790829,during Tests,Reactor Vessel Relay 2E-K18 Failed.Caused by Worn Contact on GE Hfa Relay.Logic Channel Placed in Tripped Conditon & Relay Will Be Replaced During Refueling & Maint Outage
Event date:
Report date:
2781979025R03 - NRC Website

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while at power and dur_ing a surveillance test of peactor vessel leve _

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This relay _provides Reactor vessel Los Level Trir (-133 in.) to AO5

{l initiation logic. Safety consequences were minimal since the redundant I*3I8 c *nm*1 G l, was operable. _

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man i..c :c a *5 :5 Q1 i The cause of this occurrence was a wr,rn contact on a CE HFA relay. The g j (, logic,has been placed in the tripped condition and the relay will Le pp replaced during the current refueltag and maintenance outape.

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