05000327/LER-1980-063, Forwards LER 80-063/03L-0

Forwards LER 80-063/03L-0

ML19323J038
Person / Time
Site:	Sequoyah
Issue date:	06/11/1980
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19323J039	List: 05000327/LER-1980-063, Forwards LER 80-063/03L-0 05000327/LER-1980-063-03, /03L-0:on 800513,operator Mistakenly Tripped Normal Feeder from 6.9 Kv Unit Board 2B-B W/O Putting Synchroscope Switches to on Position.Loss of Power to 6.9 Kv Shutdown Board 2A-A Resulted.Caused by Operator Error
References
NUDOCS 8006170685
Download: ML19323J038 (1)

LER-1980-063, Forwards LER 80-063/03L-0

Event date:
Report date:
3271980063R00 - NRC Website

text

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TENNESSEE VALLE f AUTHCRITY CH ATTANCCGA, TENN ESSEE 27 4 C ?

1750 Chestnut Street Tower II June 11, 1980 Mr. James P. O'Reilly, Director U.S. Nuclear Regulatory Coassission Office of Inspection and Enforessent Region II 101 Marietta Street, suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Railly:

TENNESSEE VALLEY AUTHORITY - SEQUOYAH NUCLEAR PLANT UNIT 1 - DOCKET No. 50-327 - FACILITY OPERATING LICENSE DPR REPORTABLE OCCURRENCE REPORT SQRf>-50-327/8063 1

The enclosed report provides details concerning the loss of power to 6.9-kV shutdown board 2A-A causing all four diesel generators to start.

This report is submitted in accordance with Sequoyah unit 1 Technfem1 Specification 6.9.1.13.b.

Very truly yours, TENNESSEE VALLEY AUTHORITY J. R. Calhoun Director of Nuclear Power

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Enclosure (3) cc (Enclosure):

Director (3)

Office of Management Information and Program Control U.S. Nuclear Regulatorij Commission I

Washington. DC 2055.5

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Director (40)

Office of Inspection and Enforcement U.S. Nuclear Regulatory ra-ission Washington, DC 20555 Mr. Bill Lavallee Nuclear Safety Analysis Center Palo Alto, California 94303 Mr. W. T. Cottle, MRC Inspector, Sequoyah gb M IL L C? er m t.< E * :

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