ML20091J301

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Interim Deficiency Rept (55(e)-84-15) Re Swing Check Valve in RCIC Turbine Exhaust.Initially Reported on 840427. Investigation Continuing.Final Rept Will Be Submitted by 840730
ML20091J301
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 05/23/1984
From: Lempges T
NIAGARA MOHAWK POWER CORP.
To: Starostecki R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
(55(E)-84-15), NMP2L-0061, NMP2L-61, NUDOCS 8406050465
Download: ML20091J301 (2)


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Y NIAGARA NuMOHAWK NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST. SYRACUSE. N.Y.13202/ TELEPHONE (315) 474-1511 May _ 23, 1984 (NMP2L0061)

Mr. R. W. Starostecki, 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 the swing check valve in the reactor core isolation cooling turbine exhaust (55(e)-84-15). This problem was reported via telecon to Mr. S. Collins of your staff on April 27, 1984.

Very truly yours, YM l

T. E. Lempges l

Vice President Nuclear Generation l

TL:ja Enclosure xc: Director of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555

.R. A. Gramm, Resident Inspector

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NIAGARA M0 HAWK POWER CORPORATION NINE MILE P0 INT UNIT 2 DOCKET N0. 50-410 Interim Report for the Problem Concerning Reactor Core Isolation-Cooling Turbine Exhaust Check Valve (55(e)-84-15) i Description of the Problem

.I.E. Information Notice 82-26 identified problems with reactor core isolation cooling. turbine exnaust check valves encountered in some operating boiling c

water reactors. Correspondence with the Nine Mile Point Unit 2 supplier of 1-:

the turbine exhaust check valves (Velan) has indicated that the standard swing check valve used at Nine Mile Point Unit 2 is not suitable for this application.

The-matter is still under investigation, and a final report will be submitted by. July 30, 1984.

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