ML20090J321

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Interim Deficiency Rept Re Rosemount 510DU Racks Not Attached to Rear Unistrut Supports.Initially Reported on 840402.Next Rept Will Be Submitted by 840718
ML20090J321
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 05/04/1984
From: Mangan C
NIAGARA MOHAWK POWER CORP.
To: Starostecki R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NMP2L-0048, NMP2L-48, NUDOCS 8405220427
Download: ML20090J321 (2)


Text

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Y N1 RA NU AWK NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVAAD WECT, SYRACUSE, N Y.13202/ TELEPHONE (315) 4741511 o

May 4, 1984 (NMP2L0048)

Mr. R. W. Starostecki, Director U. S. Nuclear Regulatory Connission Region I Division of Project and Resident Programs 631 Park Avenue King of Prussia, PA 19406

Dear Mr. Starostecki:

SUBJECT:

Nine Mlle Point Unit 2 Docket No. 50-410 Enclosedisaninterimreportinaccordancewith10CFR50.55(e)forthe problemconcerningRosemount510DURacks(55(e)-84-15).

This problem was reported in a telephone conversation between Mr. S. Collias, of your staff, andMr.T.Loomis(NineMilePointUnit2 Licensing)onApril2,1984.

Very truly yours, i

C. V. Mang n Vice President NucIc6 Licensing Engineering CVM/TRL:lf cc: Director of Inspection and Enforcement U. S. NucIcar Regulatory Connission Washington, DC 20555 R. Grann (NRC Rosident inspector)

I

NIAGARA M0 HAWK POWER CORPORATION NINE MILE POINT - UNIT 2 DOCKET NO. 50-410 Interim Report for a Problem Concerning Rosemount 5100U Racks (55(e)-84-15) t l

l Description of the Problem l

l The problem concerns Rosemount 51000 racks installed at Nine Mlle Point Unit 2 which are not attached to the rear unistrut supports.

During a seismic event, j

the safety-related racks could be rendered inoperable.

This problem was identified to Niagara Mohawk in General Electric Field Deviation Disposition Request No. KG1-1955.

A final report concerning this issue will be submitted by July 18, 1984.

l I

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