05000260/LER-1998-001, Forwards LER 98-001-00,concerning Engineered Safety Feature Actuations That Occurred When 2B Reactor Protection Sys Bus Transferred to de-energized Source

Forwards LER 98-001-00,concerning Engineered Safety Feature Actuations That Occurred When 2B Reactor Protection Sys Bus Transferred to de-energized Source

ML18039A308
Person / Time
Site:	Browns Ferry
Issue date:	04/07/1998
From:	Crane C TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML18039A309	List: 05000260/LER-1998-001, Forwards LER 98-001-00,concerning Engineered Safety Feature Actuations That Occurred When 2B Reactor Protection Sys Bus Transferred to de-energized Source 05000260/LER-1998-001-02, :on 980308,ESF Actuations Occurred When 2B RPS Bus Was Transferred to de-energized Source.Caused by Failure of Preparing Clearance to Exercise Proper Attention. 2B RPS Bus Restored to Transformer Source
References
NUDOCS 9804140082
Download: ML18039A308 (6)

LER-1998-001, Forwards LER 98-001-00,concerning Engineered Safety Feature Actuations That Occurred When 2B Reactor Protection Sys Bus Transferred to de-energized Source

Event date:
Report date:
Reporting criterion:	10 CFR 50.73(a)(2)(iv), System Actuation
2601998001R00 - NRC Website

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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9804140082 DOC.DATE: 98/04/07 NOTARIZED: NO DOCKET FACZL:50-260 Browns'Ferry Nuclear Power Station, Unit 2, Tennessee 05000260 AUTH.'NAME'UTHORAFFILIATION CRANE,C.M.

Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT: Forwards LER 98-001-00,concerning engineered safety feature actuations that occurred when 2B reactor protection sys bus was transferred to de-engergized source.

DISTRIBUTION CODE: IE22T COPIES RECEIVED:LTR j

ENCL I

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TITLE: 50.73/50.9 Licensee Event Report '(LER), Incident Rpt, etc.

NOTES:

RECIPIENT ID CODE/NAME PD2-3-PD INTERNAL: ACRS AEOD/S PD/RRAB NRR/DE/ECGB NRR/DE/EMEB NRR/DRCH/HZCB NRR/DRCH/HQMB NRR/DSSA/SPLB RES/DET/EIB EXTERNAL: L ST LOBBY WARD NOAC POORE,W.

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1 RECIPIENT ID CODE/NAME DEAGAZZO,A AEOD/SPD/RAB~

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R~DE/EELB NRR/DRCH/HHFB NRR/DRCH/HOLB NRR/DRPM/PECB NRR/DSSA/SRXB

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NOTE TO ALL NRIDS" 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 FULL TEXT CONVERSION REQUIRED TOTAL NUMBER OF COPIES REQUIRED:

LTTR 25 ENCL 25

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Tennessee Valley Authority, Post Oflice Box 2000; Decatur, Alabama 35609-2000 Christopher M. (Chris) Crane Vice President, Browns Feny Nuclear Rant April 7, 1998 U.S. Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D. C.

20555 10 CFR 50.73

Dear Sir.:

BROWNS FERRY NUCLEAR PLANT (BFN) - UNIT 2 DOCKET, No. 50-260 FACILITY OPERATING LICENSE DPR-52 LICENSEE EVENT'EPORT (LER) '50-260/1998001 The enclosed report provides details concerning engineered safety feature actuations that occurred when the 2B reactor protection system bus was transferred to a de-energized source because of inattention-to-detail in the preparation of a clearance.

This report is submitted in accordance with 10 CFR 50.73(a) (2) (iv) as an event or condition that resulted in an automatic actuation of an engineered safety feature.

Sincerely,

. M. Cran cc:

See page 2

9804140082 980407 PDR ADOCK 05000260

U.S.. Nuclear Regulatory Commission Page 2

April 7, 1998 Enclosure cc Enclosure):

Mr. A.

W.

De Agazio, Project Manager U.S. Nuclear. Regulatory Commission One White Flint, North 11555 Rockville Pi:ke Rockville, Maryland 20852 Mr. Mark S. Lesser, Branch Chief U. S. Nuclear Regulatory Commission Region II 61 Forsyth Street, S.

W.

Suite 23T85

Atlanta, Georgia 30303 NRC Resident Inspector.

Browns Fer'ry Nuclear Plant 10833 Shaw Road

Athens, Alabama 35611

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