05000327/LER-1980-150, Forwards LER 80-150/03L-0

Forwards LER 80-150/03L-0

ML19339A633
Person / Time
Site:	Sequoyah
Issue date:	10/28/1980
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19339A634	List: 05000327/LER-1980-150, Forwards LER 80-150/03L-0 05000327/LER-1980-150-03, /03L-0:on 800927 During Surveillance in Mode 3, Check Valve Leak Rate Exceeded Tech Spec Limit.Caused by Valve 63-635 Stuck in Open Position Due to Interference Between Disc Nut Lockwire Tack Weld & Valve Body
References
NUDOCS 8011040443
Download: ML19339A633 (1)

LER-1980-150, Forwards LER 80-150/03L-0

Event date:
Report date:
3271980150R00 - NRC Website

text

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TENNESSEE VALLEY AUTHORITY CH ATTA NCOGA. TENN ESS EE 37401 1750 Chestnut Street Tower II October 26, 1980 Mr. James P. O'Reilly, Director U.S.-Nuclear Regulatory Commission Office of Insp u tica and Enforcement Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Mailly:

TERDESSEE VALLEY AUTHORITY - SEQUOYAE NUCLEAR PLANT UNIT 1 - DOCERT NO. 50-327 - PACILITY OPERATING LICENSE DPR REPORTAR1R OCCURRENCE REPORT 54RO-50-327/80150 The suelosed report provides details concerning excessive leaka p of check valve during performance of SI-166.10. This report is submitted in accordance with Sequoyah unit 1 Technical Specification 6.9.1.13.b.

Wry truly yours, TENNESSEE VALLET AUTHORITY J. R. Calhoun Director of Nuclear Power Enclosure (3) cc (Enclosure):

Director (3)

Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555

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Director (40)

Office of Inspection and Enforeement U.S. Nuclear Regulatory Coussission Washington, DC 20555 Mr. Bill Lavalles Nuclear Safety Analysis Center Palo Alto, California 94303 NRC Inspector, Sequoyah 3._ m e