ML20203H983

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Telegram AO Rept BFAO-7338T:on 731115,RCIC Sys Failed to Operate When Manually Initiated.Caused by Electrical Contractor Hung on Arc Suppressor.Contractor Repaired & Tested Prior to Initiating Scram Recovery & Startup
ML20203H983
Person / Time
Site: 05000000, Browns Ferry
Issue date: 11/15/1973
From: Groves J
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML082390329 List: ... further results
References
FOIA-85-782 BFAO-7338T, NUDOCS 8604300069
Download: ML20203H983 (2)


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T90326 '173 4) T-030180E314)PD 11/15 /73 1734 ICS IPM3 NG 7. CSP 2057298316 TDB rJ ATHENS AL 5 8 11-15 0534P EST 4.

Q FO N 404526l4503 US AT0*IC ENEFG( CO MM I SS IO N REG IO N II DIRECTORATE OF R i

GPERATIO.NS 230 PE ACHIPEE ST NORTdWEST I

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SU3 JECT 9FAO-733 ST AT APPROXIMATELY 3 AM NOVEMRE9 15 19 CENT LOSS OF OFF SIGdT POWER TEST THE RCIC SYSTEM TlE 25 PE C FAILED TO OPE; ATE WiEN MANUALLY INITIATED. THE STEAM VALVE 71-3 j

l IT9 ELECTRICAL CONTACT 09 HUNG ON THE CAILED TO OPES RECAUSE AFC SUPPESSO R T iE 9EACT0 9 UAF AT 1 THOUSAND PSIt' WITH CLOSE3 T.iE :iPOI WAS MANUALLY IN IT IATED TO PESTORE VESSEL

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LEVEL TJ 10 MAL ':PO N INITIAL ACTUATION 1PCI ISQL ATES SIM WIT.i A APCI SPACE HIGM TEMPERATURE ALARM THE ISOLATION Cu C o

8F 1201 (RS.40)

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WAS MA 'JUALLY RESET IMMEDI ATELY AND HPCI FUCTIONED SATIS ACTORLY '

TO RESTOP REACTOR VESSEL WATER LEVEL INVESTIG A TIO N TO 'ETERMINE CAUSE OF iPCI ISOL AT IO N IS UNDER WAY. THE CO NT ACTO R FO R FCV-71-8 l

WAS REPAIRED AND SUCCESSFULLY TESTED PRIOR TO INICIATINr SCoAM RECOVERY AND START UP J F G ROVES, B ROWNS FERRY NUCLAR PLANT

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