05000327/LER-1992-017, Forwards Rev 1 to LER 92-017 Re ESF Actuation as Result of Inadvertent Auto Start Signal from Centrifugal Charging Pump 1B-B Undervoltage Auxiliary Relay.Rev Provides Event Cause as Determined by Recently Completed Work Documen

Forwards Rev 1 to LER 92-017 Re ESF Actuation as Result of Inadvertent Auto Start Signal from Centrifugal Charging Pump 1B-B Undervoltage Auxiliary Relay.Rev Provides Event Cause as Determined by Recently Completed Work Document

ML20057B258
Person / Time
Site:	Sequoyah
Issue date:	09/13/1993
From:	Fenech R TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20057B259	List: 05000327/LER-1992-017, Forwards Rev 1 to LER 92-017 Re ESF Actuation as Result of Inadvertent Auto Start Signal from Centrifugal Charging Pump 1B-B Undervoltage Auxiliary Relay.Rev Provides Event Cause as Determined by Recently Completed Work Documen
References
NUDOCS 9309210070
Download: ML20057B258 (2)

LER-2092-017, Forwards Rev 1 to LER 92-017 Re ESF Actuation as Result of Inadvertent Auto Start Signal from Centrifugal Charging Pump 1B-B Undervoltage Auxiliary Relay.Rev Provides Event Cause as Determined by Recently Completed Work Document

Event date:
Report date:
3272092017R00 - NRC Website

text

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A Tennessee vaney Authory Post onice Box 2000. Soody-Daisy. Tennessee 37379-2000 Robert A. Fenech

%ce President. Sequoyah Nuciear Plant September 13, 1993 U.S. Nuclear Regulatory Conunission ATTN: Document Control Desk  ;

Washington, D.C. 20555

{

Gentlemen: j TENNESSEE VALLEY AUTHORITY - SEQUOYAH NUCLEAR PLANT UNIT 1 - DOCKET NO. 50-327 - FACILITY OPERATING LICENSE DPR LICENSEE EVENT REPORT .

(LER) 50-327/92017, REVISION 1 The enclosed LER is being revised to provide the event cause as l determined by a recently completed work document. The original LER ->

provided details concerning an engineered safety feature (ESF) actuation-as the result of an inadvertent auto start signal from the 1B-B l centrifugal charging pump undervoltage auxiliary relay. This LER was originally submitted in accordance with 10 CFR 50.73(a)(2)(iv) as an  ;

automatic actuation of an ESF on September 30, 1992. '

Revisions to the LER are annotated by vertical bars in the right-hand ,

margin. j r

Sincerely,  !

b Robert A. Fenech l

l i

Enclosure I cc: See page 2 l

M 200041 ,

9309210070.930913 -EU  ! l

{DR ADOCK 05000327 N

.PDR' L3

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U.S. Nuclear Regulatory Commission Page 2

-September 13, 1993 , l cc (Enclosure): l INP0 Records Center '!

Institute of Nuclear Power Operations ,

700 Galleria Parkway Atlanta, Georgia 30339-5957 Mr. D. E. LaBarge, Project Manager ,

U.S. Nuclear Regulatory Commission ,

One White Flint, North 11555 Rockville Pike Rockville, Maryland. 20852-2739 ,

NRC Resident Inspector

• Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 ,

Regional Administrator i U.S. Nuclear Regulatory Commission  !

Region Il l 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323-2711

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