ML20108C616
| ML20108C616 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 10/25/1984 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (55(E)-84-41), (NMP2L-0210), (NMP2L-210), NUDOCS 8411190009 | |
| Download: ML20108C616 (2) | |
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R uM06AWK NIAGARA ISONAWK POWER CORPORAT10N/300 ERIE BOULEVARD WEST, SYRACUSE. N.Y.13202/ TELEPHONE (315) 474-1511 October' 25,' 1984 (NMP2L 0210).
a Mr. 'R. W. Starostecki,L Director U.- S. Nuclear Regulatory Commission -
. Region I.
Division of Project and Resident Programs 631 Park Avenue King of Prussia, PA 19406 Re: Nine Mile Point - Unit 2 Docket No.-50-410
Dear Mr. Starostecki:
Enclosed is an interim report, in accordance with 10CFR50.55(e), for the problem concerning Magnetrol level switches.
This problem was reported via tel-con to S. Collins of your staff on September 25, 1984 1
Very truly yours, C. V. Mangan Vice President Nuclear Engineering'and Licensing CVM/GG/pbd xc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Comission
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Washington, DC 20555
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R. A. Gramm, NRC Resident Inspector Project File (2)-
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NIAGARA MOHAWK POWER CORPORATION NINE MILE: POINT - UNIT 2 DOCKET N0; 50-410 Interim Report for a Problem Concerning Magnetrol-Level Switches (55(e)-84-41)
Description-of the Problem
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The problem pertains to C11-Magnetrol.751' level switches.
These switches aro manufactured by Magnetrol Company and are supplied to Nine Mile Point. Unit 2
' by General Electric.
General. Electric's Early - Warning Notice No. 47 indicated that during a high energy line-break the switch gasket could. fail, thus resulting in a failure /short of the microswitch. - The failure of the switch could result in the loss of safety-related de power supply.
The subject switches are used in safety related systems.
The matter is still being investigated and a final report will-be submitted by February 4,1985 i
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