05000259/LER-1979-027, Forwards LER 79-027/03L-0

Forwards LER 79-027/03L-0

ML19210C099
Person / Time
Site:	Browns Ferry
Issue date:	11/07/1979
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210C100	List: 05000259/LER-1979-027, Forwards LER 79-027/03L-0 05000259/LER-1979-027-03, /03L-0:791010,HPCI Turbine Tripped Due to Failed Rupture Disc on Turbine Exhaust Lines.Caused by Failure of Teflon Sheet on Disc,Providing No Protection to Disc Under Vacuum Condition
References
NUDOCS 7911130257
Download: ML19210C099 (1)

LER-1979-027, Forwards LER 79-027/03L-0

Event date:
Report date:
2591979027R00 - NRC Website

text

o s 9 TENNESSEE VALLEY AUTHORITY CH ATTANCOG A. TENN ESS" 37401 716 Edney Building November 7, 1979 Mr. James P. O' eitly Director U.S. Nuclear egul a ry Commission Office of I:yepection and Enforcement Region II /

101 Marietta Street, suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

TE'CI':.35EE VALLEY AUTHORITY - 3R0iniS FERTl NUCI. EAR PLANT "'!IT 1 - OCCXET NO. 50-259 - FACILIT" 0FERATI:;G LICENSE DPR REPORTA3LE OCCURRENCE REPORT BFRO-50-259/7927 The enclosed report providea details concerning Surveillance Instruction 4.5.E.1.d which was being run when high-pressure coolant injection system turbine tripped due to a failed rupture disc in the turbine exhaust line with the unit in steady-state power of 98 percent. This report la subnitted in accordance with 3rowns Ferry unit 1 Technical Specification 6.7.2.b.2.

Very truly yours, TEiniESSEE VALLEY AUTHORITY J.

x,. Calhoun Director of Nuclear Power Enclosure (3) l cc (Enclosure):

Director (3)

Office of Management Informat n and Program Control U.S. Nuclear Regulatory Co sion Washington, DC 20555 Director (40)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Connission Washington, DC 20555 R. F. Sullivan, NRC Inspector, Browns Ferry v

1320 069 kh \\

7911130 d 5 7 An Ecual Opportumty Employer