ML13333A448
| ML13333A448 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/03/1979 |
| From: | Baskin K Southern California Edison Co |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7912100306 | |
| Download: ML13333A448 (2) | |
Text
Southern California Edison Company P. 0.
BOX 800 2244 WALNUT GROV.E AVENUE ROSEMEAD, CALIFORNIA 91770 K. P. BASKIN TELEPHONE
- MANAGER, GENERATION ENGINEERING December 3, 1979 213-572-1401 Director, Office of Nuclear Reactor Regulation Attention:
Mr. D. L. Ziemann, Chief Operating Reactors Branch #2 Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Gentlemen:
Subject:
Docket No. 50-206 Surveillance Tests of the Safeguards System San Onofre Nuclear Generating Station Unit 1 By letter dated November 16, 1979, we submitted the response to your letter dated Sept6mber 21, 1979 regarding our policies and procedures with respect to surveillance tests of the reactor safeguards system. The enclosure to that letter was transmitted with an incorrect statement included on page two.
The enclosure to this letter provides the corrections to page two.
If you have any questions or desire additional information, please contact me.
Sincerely, encl.
1791210 0
Enclosure:
Correction
-2 The applicable procedures will be systematically reviewed and revised by January 1, 1980 to include a vigorous program to identify potential failure modes that could lead to a significant reduction in the ability of safety systems to function as required due to multiple equipment failures.
- 3.
Required Action Finally, you are requested to review your engineered safety system surveillance procedures to determine whether appropriate cautions are included and to ensure that plant operators and supervisors are aware of the importanCe of avoiding challenges to the protective features of your facility.
Response
As noted in Item 2 above, following specific incidents, an examination is conducted to determine the cause and the corrective action to be taken to prevent recurrence of the event. As a part of the review of all reactor safeguards surveillance procedures which will be completed by February first, 1980, revisions will be made where it is determined that appropriate cautions are necessary. Also, a station memorandum will be prepared and distributed to all operators and supervisors explaining the importance of avoiding challenges to the protective features of the system.