ML19296A683

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Responds to IE Bulletin 79-28.Limit Switches Not Used in Any Instrumentation & Control Equipment in Svc.No Switches on Order
ML19296A683
Person / Time
Site: Maine Yankee
Issue date: 01/10/1980
From: Moody D
Maine Yankee
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-28, NUDOCS 8002150132
Download: ML19296A683 (1)


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$ gZh ENGINEERING OFFICE WESTBORO, MASSACHUSETTS 01581 617-366-9011 B.4.1.1 WMY 80-7 January 10, 1980 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention:

Mr. Boyce H. Grier, Director Re ference s :

(a)

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

(b) USNRC Letter to MYAPC dated December 7, 1979 I&E Bulletin 79-28

Dear Sir:

Subject:

Possible Malfunction of NAMCO Model EA180 Limit Switches Your letter, Reference (b), addresses a concern of the possible failure / malfunction of NAMCO Model EA180 limit switches manufactured between February and August, 1979.

An investigation by our staff has revealed that the subject limit switches are not used in any I&C equipment presently in service; furthermore, there are no subject switches on order.

We trust you will find this infomation satisfactory; however, should you desire additional infomation, feel free to contact us.

Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY D. E. Moody Manager of Operations RHG/nj b

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