05000259/LER-1979-031, Forwards LER 79-031/03L-0

Forwards LER 79-031/03L-0

ML19260C139
Person / Time
Site:	Browns Ferry
Issue date:	12/12/1979
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19260C140	List: 05000259/LER-1979-031, Forwards LER 79-031/03L-0 05000259/LER-1979-031-03, /03L-0:on 791112,drywell Air Sampling Monitor,Rm 90-256,observed Alarming Downscale.Erratic Indications Recorded on Previous Occasions.Caused by Failure of Raeco Model 1017 24-Volt Transformer.Transformer Replaced
References
NUDOCS 7912180623
Download: ML19260C139 (1)

LER-1979-031, Forwards LER 79-031/03L-0

Event date:
Report date:
2591979031R00 - NRC Website

text

........

1 TENNESSEE VALLEY AUTHORITY

\\

CH ATTANOOGA. TENNESSEE 37401 716 Edney Building December 12, 1979 Mr. James. O'Reilly, Director U.S. Nucipar Regulatory Countission j

Office of %

tion and Enforcement Region II 101 Marietta Street, Suite 3100

?

Atlanta, Georgia 30303

[

Dear Mr. O'Reilly l

TENNESSEE VALLEY AUTHORITY - BEDWNS FERRY HUCLEAR PLANT UNIT 1 - DOCKET l

No. 50.-259 - FACILITY OPERATING LICENSE DPR REPORTABLE OCCURRENCE I

2 REPORT BFRO-50-259/7931 The enclosed report provides details concerning the drywell air sampling inonitor, RM 90-256, wh'ch was observed alarming downscale during normal j

operation. This report is submitted in accordance with Browns Ferry unit 1 Technical Specification 6.7.2.b.2.

l l

Very truly yours, l

r TENNESSEE VALLEY AUTHORITY r

i i

J. R. Calhoun l

Director of Nuclear Power

[

_I Enclosure (3) r cc (Enclosure):

Director (3)

Office of llanage:nent Infoma on and Program Control U.S. Nuclear Regulatory Co saion l_

Washington, DC 20555 L

Director (40)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 R. F. Sullivan, NRC Inspector, Browns Ferry 1614 319 Aooa 7 91'M "

An Equal Opportunity Employer N

^*