ML19209D152

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

Date released: 08/11/2019	Download: ML19209D152

LER 79-086/03L-1:on 790725,train 2 of Control Room Emergency Ventilation Sys Was Inoperable.Cause by One of Three Thermistors in Compressor Motor Winding Failing to Open Circuit.Compressor Repaired & New One Will Be Installed

ML19209D171
Person / Time
Site:	Davis Besse
Issue date:	08/21/1979
From:	Rudolph J TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
Download: ML19209D171 (2)

LER 79-045/03L-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

ML19209D164
Person / Time
Site:	Davis Besse
Issue date:	04/25/1979
From:	Nelson J TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
Download: ML19209D164 (3)

LER 79-028/03L-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

ML19209D160
Person / Time
Site:	Davis Besse
Issue date:	03/15/1979
From:	Naylor R TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
Download: ML19209D160 (3)

LER 79-005/03L-1:on 790106,borated Water Storage Tank Bistable Was Tripped & Decay Heat Valves DH9A Opened & DH7A Closed.Cause by Component Failure of Output Relay K51A in Safety Feature Actuation Sys Channel 4

ML19209D156
Person / Time
Site:	Davis Besse
Issue date:	10/13/1979
From:	Nelson J TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
Download: ML19209D156 (3)

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:	KEPPLER J G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
Download: ML19209D151 (1)