ML20202E575
| ML20202E575 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/04/1986 |
| From: | Diederich G COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| RTR-NUREG-0588, RTR-NUREG-588 NUDOCS 8604140011 | |
| Download: ML20202E575 (1) | |
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) Commonwealth Edison
[
LaS:lla County Nuctnr St; tion 2-(
Rural Rout) #1, Box 220
(
Marseilles, Illinois 61341 PRIORITY ROUTIf;G U
(
Telephone 815/357-6761
- d 234 i
fI f April h, 1986
- QQf M
F PAC FIL h Mr. James G. Keppler Regional Administrator Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Dear Mr. Keppler:
This special report is being submitted in accordance with Technical Specifica-tion 3.7.7 and 6.6.C.
l On March 7, 1986, during Unit 2 operation at 73 percent power, sensor 2TE-VP215 in the vicinity of Safety Relief Valves (SRV's) K, S, F and M was reading 153 F.
At this time the Station vill monitor the temperature reading from this parti-cular sensor daily. The reading at the time of this writing has not changed nor does it appear that it vill in the near future. This temperature is higher than previous readings for this sensor. The unit had shut down on March 3 and restarted on March 5 with work being performed on the Reactor Water, Cleanup (RWCU) Inboard Isolation Valve. No work was performed in the vicinity of this sensor. It is believed that the cause of the temperature difference from previous readings is not due to human interference but merely a result of air flow path changes.
As noted in a letter to Mr. James G. Keppler from Mr. G. J. Diederich dated September 25, 1985, an analysis of the NUREG 0588 Category II qualified life of the SRV solenoids show that as of August 28, 1985, the solenoids still have almost 16 years qualified life, if the temperature at the solenoids remain at J
the tenperature currently existing.
s M
G.J.Diederied 4 Station Manager 1
r IaSalle County Station GJD/AML/DRR/kg xc NRC Resident Inspector INPO-Records Center US NRC Document Control Desk l{0 Y $D APR 8 1986 8
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