ML19209D151

Forwards Lers 79-005/03L-1,79-028/03L,79-045-03L-1 & 79-086/03L-1

ML19209D151
Person / Time
Site:	Davis Besse
Issue date:	10/13/1979
From:	Murray T TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19209D152	List: 05000346/LER-1979-028-03, /03L-1:on 790217,high Level Fail Alarm Received for Borated Water Storage Tank Level on Safety Features Actuation Sys Channel 1.Caused by Inadequate Insulation of Instrument Piping & Poor Location of Heat Trace Temp Sensor 05000346/LER-1979-045-03, /03L-1:on 790330,borated Water Storage Tank Low Level Trip Setpoint in Safety Feature Actuation Sys Channel 2 Was Out of Tolerance.Caused by Noisy Constant Current Test Potentiometer.Potentiometer Replaced ML19209D151
References
NP-33-79-06, NP-33-79-6, NUDOCS 7910190463
Download: ML19209D151 (1)

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TOLEDO sua EDISDN October 13, 1979 L79-818 FILE: RR 2 (NP-33-79-06, NP-33-79-32, NP-33-79-50, Docket No. 50-346 NP-33-79-99)

License No. NPF-3 Mr. James G. Keppler Regional Director, Region III Office of Inspection and Enforcement U. S. Nuclear Regulatory Connission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

Enclosed are three copies of Licensee Event Reports79-005, 79-028,79-045, and 79-086 c.ang with a copy of each respective supplemental inf ormation sheet, which have been updated.

The revisions to these reports are indicated by a "1" in the lef t margin of each report.

Please replac. your previous copies of these reports with the attached revised copics.

Yours truly, Th O Terry D. Murray Station Superintendent Davis-Besse Nuclear Power Station TDM/ljk cc:

Dr. Ernst Volgenau, Director Office of Inspection and Enforcement Encl:

30 copies LER 79-005,79-028, 79-045,79-086 (Rev. 1)

Mr. William G. Mcdonald, Director Offica of Management Information and Progran Control i174 054 Enc 1:

3 copies LER 79-005,79-028, 79-045,79-086 (Rev. 1) 7910190 s

THE TCLEDO EDISCN COMPANY EDISON PLAZA 300 MADISDN AVENUE TOLEDO, OH:0 43652