ML13333A420

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Forwards Comments on NRC Draft Evaluation of SEP Topic III-10.B Re Pump Flywheel Integrity
ML13333A420
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 10/05/1979
From: Haynes J
Southern California Edison Co
To: Ziemann D
Office of Nuclear Reactor Regulation
References
TASK-03-10.B, TASK-3-10.B, TASK-RR NUDOCS 7910220322
Download: ML13333A420 (2)


Text

Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 October 5, 1979 Director 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 Systematic Evaluation Program San Onofre Nuclear Generating Station Unit 1 Your letter of August 16, 1979, forwarded to Southern California Edison (SCE),

a draft evaluation of Systematic Evaluation Program Topic III-10.B, Pump Flywheel Integrity.

Enclosed are SCE's comments on this draft.

If you have any questions, please let me know.

Sincerely, Chief of Nuclear Engineering Enclosure

'19 1 0220 322

SAN ONOFRE UNIT 1 COMMENTS ON DRAFT EVALUATION SEP Topic III-10.B, Pump Flywheel Integrity Inspection of the pump flywheels is being considered as part of the Inservice Inspection Program in compliance with the requirements of Paragraph (g) of 10CFR Part 50.

It is suggested that the last two paragraphs on Page 4 be changed to read as follows:

"The proposed addition has not yet been added to the Technical Specification; however, it is being considered for addition in a future license amendment or incorporation into the Inservice Inspection Program in compliance with Paragraph (g) of 10CFR, Part

50.

We conclude from our review that the integrity of the flywheels on the primary coolant pumps will be adequately maintained by an Inservice Inspection Program in compliance with the recommendations of Regulatory Guide 1.14.

The reports of inservice inspections that have been performed on the San Onofre Nuclear Generating Station Unit No. 1 since October, 1979 show compliance with the guidelines set forth in the guide. However, it is recommended that additions be made to the Technical Specification or the Inservice Inspection Program to reflect compliance with the recommendations of Regulatory Guide 1.14.

These additions should follow those originally proposed by the licensee but not yet incorporated by the staff."