ML19247B289

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Responds to IE Bulletin 79-11.Westinghouse Type DB Circuit Breakers Not Used in safety-related Class IE Circuits
ML19247B289
Person / Time
Site: Maine Yankee
Issue date: 07/03/1979
From: Groce R
Maine Yankee
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
WMY-79-65, NUDOCS 7908080313
Download: ML19247B289 (1)


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%.==:O WMY 79-55 July 3, 1979 United St ates Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention:

Mr. Boyce 11. Grier, Director Re fe re nces :

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

(2) NRC, Region 1, letter, dated May 22, 19/9 (3) IE Bulletin 79-11, dated May 22, 1979 Gent 14 men:

Faulty Overcurrent Tri_p Devices in Westinghouse DB Circuit Breakers Reference (3) required Maine Yankee to determine if Westirghouse type DB circuit breakers are installed in safety related Class IE circuits or in spares.

Maine Yankee has determined that the subject circuit breakers are not used in safety-related Class IE circuits.

We plan no further action on IE Bulletin 79-11.

We trust that you find this i n fo rma t ion sa t i., f ac t ory ; however, should you require additional information, please contact us.

Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY

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