05000259/LER-1980-003, Forwards LER 80-003/03L-0

Forwards LER 80-003/03L-0

ML19262C231
Person / Time
Site:	Browns Ferry
Issue date:	02/04/1980
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19262C232	List: 05000259/LER-1980-003, Forwards LER 80-003/03L-0 05000259/LER-1980-003-03, /03L-0:on 800112,while Performing Local Leak Rate Testing During Refueling Shutdown,Path Leakage Through MSIVs for 3 of 4 Main Steam Lines Exceeded Leak Rate Per Tech Specs.Caused by Normal Wear & Erosion
References
NUDOCS 8002080420
Download: ML19262C231 (1)

LER-1980-003, Forwards LER 80-003/03L-0

Event date:
Report date:
2591980003R00 - NRC Website

text

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TENNESSEE VALLEY AUTHCRITY CH ATTA NOCC A TENNESSEE 3740 716 Edney Building FEB 4 1980 Mr. James P. O'Railly, Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Railly:

TENNESSEE VALLEY AUTHORITY - BROWNS FERRY NUCLEAR PLANT UNIT 1 - DOCKET No. 50-259 - FACILITY OPERATING LICENSE DPR REPORTABLE OCCURRENCE REPORT BFRO-50-259/803 The enclosed report providas details concerning excessive leakagr through the nain steam isolation valves found during local leak rate testing performed in accordance with Technica1 Specification 4.7.A.2.g with unit 1 in cold shutdown for refinaling. This report d.s submitted in accordance with Browns Ferry unit 1 Technical Specifics. 8on 6.7.2.b(4).

Very truly yours, TENNESSEE VALLEY AUTHORITY J. R. Calhoun Director of Nuclear Power Enclosura (3) cc (Enclosure):

Director (3)

Office of Management Information and Program Contrel U.S. Nuclear Regulatory Cosmtission Washington, DC 20555 Director (40)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Connaission Washington, DC 20555

]

f944 I83 Mr. su1 tavane.

Nuclear Safety Analysis Cantar Palo Alto, California 94303 Mr. R. P. Sullivan, NRC Inspector, Browns Ferry J s002 00

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