05000296/LER-1978-034, Forwards LER 78-034/03L-0

Forwards LER 78-034/03L-0

ML18024A635
Person / Time
Site:	Browns Ferry
Issue date:	01/12/1979
From:	Fox H TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18024A637	List: 05000296/LER-1978-034, Forwards LER 78-034/03L-0 05000296/LER-1978-034-03, /03L-0 on 781216:during Normal Operation,The Relief Valve on Discharge of Standby Liquid Control Pump 3A PCV-63-512 Was Observed to Open at Wrong Set Pressure. Caused by Maladjustment of Crosby 1X2 Style Jm Wk Valve
References
NUDOCS 7901170215
Download: ML18024A635 (2)

LER-1978-034, Forwards LER 78-034/03L-0

Event date:
Report date:
2961978034R00 - NRC Website

text

January 12, 1979 a

TENNESSEE VALLEYAVTHORITY cHATTANooGA, TENNEssEE 37401 Hr. James P.

eilly, rector U.S. Hu r Regulatory C

ssion Off of Inspection and orc Region II 101 arietta Street, Suite 3100 Atlanta, Georgia 30303 Dear 1h. O'ReiEl,y!

TENNESSEE VALLEYAUTHORITY-BROWS PERRY NUCLEAR PLANT UHIT 3 - DOCKET NO 50-296 FACILITY OPERATIHO LICEHSE DPR&8 REPORTABLE OCVNREMCE REPORT BFRO-50-296/7834 The enclooed report provides details concerning the relief valva an the discharge of standby liquid control pump 3A, PCV-63-512, which was observed to open at 1,150 poig instead of the design setting of 1,425 + 75 psig as required by technical specification 3.4.A.1 during normal pcnmr operation chile performing surveillance instruction 4.4.A.l.

This report io submitted in accordance eath Brouns Ferry unit 3 technical specification 6.7.2.6,2.

Very truly yours, TENNESSEE VALLEYAUTHORITY H. S. Fax Director of Pomr Production

) gor'i~r p9i~',

Enclosure (3) cc (Enclosure) c Director (3)

Office of Hanageuent Information and Program Control U.S. Nuclear Regulatory Ccmaission Uashington, D Ce 20555 Director (40)

Office of Inspection and Enforc t

U.S. Nuclear Rogulatory Commis on Uashington~

D,C 20555 R. F. Sullivan, NRC Inspector, Browns Ferry 7901 i V 03 ~S An Equal Opportunity Employer

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