PNO-II-97-057, on 971017,discovered 12 of 14 Instrument Cables Damaged in Unit 2 Containment Electrical Penetration. Sequoyah Unit 2 in Outage & All Fuel Removed from Reactor Vessel.Licensee Continues to Investigate Event

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PNO-II-97-057:on 971017,discovered 12 of 14 Instrument Cables Damaged in Unit 2 Containment Electrical Penetration. Sequoyah Unit 2 in Outage & All Fuel Removed from Reactor Vessel.Licensee Continues to Investigate Event
ML17292B778
Person / Time
Site: Sequoyah 
Issue date: 10/17/1997
From: Lesser M
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-II-97-057, PNO-II-97-57, NUDOCS 9710220270
Download: ML17292B778 (2)


CATEGORY REGULATO INFORMATION DISTRIBUTION YSTEM (RIDS)

ACCESSION NBR:9710220270 DOC.DATE: 97/10/17 NOTARIZED: NO DOCKET FACIL:50-328 Sequoyah Nuclear Plant, Unit 2, Tennessee Valley Auth 05000328 AUTH.NAME AUTHOR AFFILIATION LESSER,M.

Region 2 (Post 820201)

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

PNO-II-97-057:on 971017,discovered 12 of 14 instrument cables damaged in Unit 2 containment electrical penetration.

Sequoyah Unit 2 in outage

& all fuel removed from reactor vessel. Licensee continues to investigate event.

DISTRIBUTION CODE:

IE34F COPIES RECEIVED:LTR ENCL SIZE:

TITLE: 50 Docket 6 Vendors PNO/Non-Routine Event/Safeguards Event (PN)

NOTES:

RECIPIENT ID CODE/NAME INTERNAL: ACRS NRR/DISP/PIPB NUDOCS FULL TXT RES/DET/EIB RES/DRA/DEPY RES/DST DEPY RGN2 FILE 01 COPIES LTTR ENCL RECIPIENT ID CODE/NAME CENTER OE DIR RES/DRA RES/DST RES/RPHEB

'COPIES LTTR ENCL 1

1 1

1 1

1'XTERNAL:

LITCO BRYCEiJ H

NRC PDR NOAC D

N NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE.

TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)

ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:

LTTR M

ENCL 16

October 17, 1997 PRELIMINARY NOTIFICATION OP EVENT OR UNUSUAL OCCURRENCE PNO-IX-97-057 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance.

The information is as initially received without verification or evaluation, and is basically all that is known by Region IZ staff in Atlanta, Georgia on this date.

~Faa11it Tennessee Valley Authority Sequoyah 2

Soddy-Daisy, Tennessee Dockets:

50-328 Licensee Emer enc Classification Notification of Unusual Event Alert Site Area Emergency General Emergency X Not Applicable

Subject:

EQUIPMENT DAMAGE At 11:00 a.m.,

October 17,

1997, Sequoyah Nuclear Plant reported to the NRC that they had discovered 12 of 14 instrument cables damaged in a Unit 2 Containment electrical penetration.

Sequoyah Unit 2 is in an outage, and all fuel has been removed from the Reactor Vessel.

The penetration was being replaced, and work had proceeded to the point that the penetration was being, re-wired.

The licensee continues to investigate th>> event"and has taken compensatory measures.

TVA is prepared to respond to press inquires.

Region ZZ is following licensee activities in response to this event.

The State of Tennessee has been informed.

'This information is current as of 3:00 p.m.,

October 17, 1997.

Contact:

NARK LESSER (404)562-4560 97i0220270 97i0i7 PDR E5E