ML19347B164

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Responds to IE Bulletin 80-20.Westinghouse Type W-2 Control Switches Are Not Used
ML19347B164
Person / Time
Site: Maine Yankee
Issue date: 09/04/1980
From: Moody D
Maine Yankee
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-80-20, WMY-80-130, NUDOCS 8010010720
Download: ML19347B164 (1)


Text

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$N ENGINEERING OFFICE WESTBORO, MASSACHUSETTS 01581 617-366-9011 xA September 4, 1980 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, PA 19406 Attention:

Mr. Boyce H. Grier, Director

References:

(a) License No. DPR-36 (Docket No. 50-309)

(b) USNRC Letter to MYAPC dated July 31, 1980, IE Bulletin No. 80-20

Subject:

Response to IE Bulletin No. 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches

Dear Sir:

Reference (b) revealed a potential malfunction of the subject control switches. As a. mult of our review, Maine Yankee has determined it does not use Westinghouse Type W-2 spring return to neutral control switches.

The following information is submitted in response to your request for estimates of manpower expended in the research and subsequent performance of actions associated with this bulletin:

Manpower Requirements Hours Bulletin Response 12 Manhours Corrective Actions Not Applicable It should be clearly understood that this informstien is not adequate to enable a value impact assessment. We believe a determination of the safety improvement, as a result of this bulletin, would be necessary before the staff could perform an accurate value impact assessment.

We trust that this information is catisfactory.

Sincerely, j

MAINE YANKEE ATOMIC POWER COMPANY j

E Moody Manager of Operations 8 010 o'10 M Q