ML19242B432

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Special Rept 79-N/A/99X-0 on 790522:during Routine Insp, Cable Leads Were Found Lifted But Not Tagged.Lifted Leads Prevented Automatic Opening of Emergency Feedwater Valves. Cause Unknown.Leads Reconnected
ML19242B432
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 05/22/1979
From: Shively C
ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19242B424 List:
References
NUDOCS 7908080511
Download: ML19242B432 (1)


Text

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EVENT D ATE 74 ib HEPOM T D ATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h

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Lpurinc a routine maintenance investigation, cable leads at location i

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o l a i I C-46. 1-8-5 termination 2 6 6 were found to be lifted, I

Ibut were not tarred in accordance with procedure 1005.04, I

o 1" Control 6 Use of Bypass 6 Jumpers". The lifted leads prevents the i

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l automatic opening cf ICS control Emergency Feedwater valves cv-2670 j

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o > 16 cv-2620: however, thev were operable by manual control. There have I

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i been no similar occurrences.

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C AUSE DESCR.PTION AND CORREC rive ACTIONS h IThe valves were actuated automatically last on 12/31/78. A search o

t i li j iof maintenance documentation failed to reveal when or why the i

ii12i 11eads were lifted, but it is postulated that they were lifted i

lduring the present refueling outage. The leads were reconnected 3

land the valves proven operable.

ISC and electrical personnel to review oc.currencc i

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