ML19318B909

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Interim Deficiency Rept Re Potential Overstressed Condition in Letdown Cooler Supports.B&W Analysis of Nozzle Loads for Effects on Support Structure Is Complete.Loads Are Confirmed to Exceed Allowable Loads.Redesign Planned
ML19318B909
Person / Time
Site: Midland
Issue date: 06/19/1980
From: Jackie Cook
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
References
NUDOCS 8006300277
Download: ML19318B909 (1)


Text

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' s CODS!!I,13rS 6 POVict James W Cook 40 00f Vnce 14esident. Atnlland 14ujecs General of fices: 1945 West Parnell Road, Jackson, Michigan 49201 *(517) 788-0640 June 19, 1980 l

Mr J G Keppler, Regional Director Office of Inspecticn & Enforcement US Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 MIDLAND NUCLEAR PLA'IT UNIT N0 1, DOCKET No 50-329 UNIT NO 2, DOCKET No 50-330 LETDOWN COOLER SUPPCRTS FILE: M1.13 UFI: 02312(S), 13107(E) Serial: 9180

References:

S H Howell letter to J G Keppler; Midland Nuclear Plant; Unit No 1, Docket No 50-329; Unit No 2, Docket No 50-330; i Letdown Coolers; Howe-6h-80, dated March 27, 1980 This letter, as was the referenced letter, is an interim 50.55(e) - report concerning the potential overstressed condition in letdown cooler supports.

The analysis of the nossle loads for their effects on the support structure has been completed by B&W, and the loads are confirmed to exceed the allow-able loads. Redesign of the support structure is anticipated to be com-pleted by the end of September.

3 Another report, eithe interim or final, will be sent on or before October 13, 1980.

JWC/ch '

CC Director of Office of Inspection and Enforcement Att Mr Victor Stello, USNRC (15)

Director of Office of Management Information & Program Control, USNRC (1) 8 o o e 30 o g77 t