ML19210A303

Provides Addl Info to to Nrc.Review of River Water Pumps Column Flange Design Shows Manufacturer Stress Calculations Possibly Failed to Account for Both Flange Bolting & Seismic Forces.Tests Confirm Pump Acceptability

ML19210A303
Person / Time
Site:	Crane
Issue date:	04/04/1977
From:	Arnold R METROPOLITAN EDISON CO.
To:	Reid R Office of Nuclear Reactor Regulation
References
GQL-0633, GQL-633, NUDOCS 7910290540
Download: ML19210A303 (2)

Text

N RC,N 195 U.S. NUCLE AR R E GULATO.

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NRC DISTRIBUTION FOR PART 50 DOCKET MATERI AL TO:

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OCOPY OESCRIPTION ENCLOSU RE LTR. RE. THEIR 10/19/76 LTR...LTR ADVISING THAT TEST HAVE BEEN PERFOR3 FED CONCERNING THE TMI-1 RIVER WATER PUMPS AND ARE CONFIR'IED TO BE ACCEPTABLE.......

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Director of ?Iuclear Reactor Regulation

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Cear Sir:

N Three Mile Island :Iuclear Station ('2:E-1)

Eceket :To. 50-269 Operating License :I0. DPR-50 Cn October 19, 1976 we informed you of a situation cencerning the TMI-l River '4ater Pumps. A review of the colunn flange iesign revealed that the manufacturer's stress calculations may not have prcperly accounted for bcth flange bclting forces and seismic forces.

Since then, tests have been performed by the manufacturer-2e results of these tests have ccnfirmed the seismic acceptability of these purps.

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