ML20087N149

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Interim Deficiency Rept 84-09 Re Failure to Consider Hydraulic Transient for Pump Restart in Svc Water Piping Sys Analysis.Initially Reported on 840215.Investigation Continuing.Final Rept Will Be Submitted by 840928
ML20087N149
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 03/14/1984
From: Mangam C, Mangan C
NIAGARA MOHAWK POWER CORP.
To: Starostecki R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RTR-NUREG-0582, RTR-NUREG-582 84-09, 84-9, NMP21-004, NMP21-4, NUDOCS 8404030162
Download: ML20087N149 (2)


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NUMOHAWK Y NIAGARA NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST. SYRACUSE. N Y.13202/ TELEPHONE (315) 4741511 March 14, 1984 (NMP2L 004)

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 an hydraulic transient for pump restart in the service water system (55(e) 09). This problem was reported via telecon to S.

Collins of your staff on February 15, 1984.

Very truly yours, bM' C. V. Manga Vice President Nuclear Engineering & Licensing CVM/TL:ja Enclosure xc: Director of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 R. Gramm (NRC Resident Inspector) 8404030162 040314 gDRADOCK 05000410 PDR b

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NIAGARA M0 HAWK POWER CORPORATION NINE MILE POINT - UNIT 2 DOCKET N0. 50-410 Interim Report for a Problem Concerning Hydraulic Transient for Pump Restart (55(e) 09) i 1

Description of the Problem The hydraulic transient for pump restart was not considered in the service water piping system analysis.

As a result of problems in some operating plants, this condition was initially addressed by the Nuclear Regulatory Commission in NUREG 0582.

The matter is still under investigation and a final report will be submitted by September 28,1984.

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