ML20247E061
| ML20247E061 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/19/1989 |
| From: | Nandy F SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 8907260066 | |
| Download: ML20247E061 (1) | |
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L Southem Califomia Edison Company P O BOX SOO 2244 WALNUT GRr VE AVENUE ROBEMEAD, CALWOnNIA 91770
/or"~lc'*"fuc t ~s,~o July 19, 1989 i.7[o" ".'..
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U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C.
20555
Subject:
Docket Nos. 50-361 and 50-362 Special Report San Onofre Nuclear Generating Station, Units 2 and 3 The purpose of this letter is to provide a Special Report required by Technical i
Specification (TS) 3.3.3.4, Action a, of f v.ility Operating Licenses NPF-10 and
.NPF-15 for San Onofre Nuclear Generating Station Units 2 and 3 involving the Meteorological Monitoring Instrumentation channels being out of service for greater than 7 days.
On 07/07/89, with Unit 2 at 100% power and Unit 3 in Mode 4, the 40-meter meteorological tower was removed from service to perform the semiannual monitoring instrumentation channel. calibration surveillance pursuant to TS Table 4.3-5 and to implement a design change that results in replacing the meteorological tower.
The backup 10-meter meteorological tower, which remains in service, and a temporary weather station will provide the alternate means of monitoring the required parameters.
It is anticipated the 40-meter meteorological tower will be returned to service by July 21, 1989.
Please contact us if we can be of further assistance.
Sincerely, l
/
cc:
J. B. Martin (Regional Administrator, USNRC Region V)
F. R. Huey (USNRC Senior Resident Inspector, Units 1, 2, and 3)
Institute of Nuclear Power Operations (INP0) 8907260066 890719 49/
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