PNO-I-85-085A, on 851106,licensee Secured from Unusual Event Declared Due to Automatic Actuation of Cable Tunnel Deluge Sys.Caused by Faulty Printed Circuit Card.Ground on Nonvital Bus Damaged by Deluge Sys Corrected

PNO-I-85-085A:on 851106,licensee Secured from Unusual Event Declared Due to Automatic Actuation of Cable Tunnel Deluge Sys.Caused by Faulty Printed Circuit Card.Ground on Nonvital Bus Damaged by Deluge Sys Corrected

ML20198C231
Person / Time
Site:	Ginna
Issue date:	11/07/1985
From:	Collins S, Sharon Hudson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
References
PNO-I-85-085A, PNO-I-85-85A, NUDOCS 8511120025
Download: ML20198C231 (1)

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i s  ;;qq. , 4 DCS N): 50244/851106 Date: Novemb2r 7, 1985 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-I-85-85A (UP This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The infomation is as initially received without verification or evaluation, and is basically all that is known by the Region I

-staff on this date. , .

Facility:d ~ ^ ' Licensee Emergency Classificatiorn Rochester Gas and Electric Corp. .

? Notification of Unusual Event R. E. Ginna Nuclear Station Alert Ontario, New York 0 ~ Site Area Emergency DN 50-244 General Emergency X Not Applicable

Subject:

UPDATE ON UNUSUAL EVENT DUE TO FIRE SYSTEM ACTUATION At 1220 on November 6,1985, the licensee secured from the Unusual Event declared at 0505 due to automatic actuation of the cable tunnel deluge system. Investi-gation by the licensee determined that there had been no fire and that a faulty printed circuit card had caused the inadvertent actuation.

The only damage caused by the deluge system was a ground on a non-vital bus that has been corrected.

Tha State of New York has been informed.

CONTACT: S. Hudson S. Collins FTS 488-1122 488-1225 DISTRIBUTION:

H. St. MNBB Phillips EN W111ste Chairman Palladino EDO Mail: ADM:DMB NRR IE Comm. Zech PA NMSS DOT:Trans only OIA RES Comm. Bernthal ELD AE00 Comm. Roberts '

Comm. Asselstine ACRS Air Rights INPO- S SECY CA SP NSACD PDR Regional Offices TMI Resident Section _ \Mo RI Resident Office w St Licensee:

(Reactor Licensees)

Region I Fors 83 (R;v. July,1984) ,' ,

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