ML19351F690

Ack That Util Will Submit 30-day Rept Describing Cause of Failure of Reactor Speedwater Sparger U-bolt Clamps, Corrective Actions Taken & Sprager Clamp Design Mod Description.Info Requested to Suppl Util 741124 Rept

ML19351F690
Person / Time
Site:	Humboldt Bay
Issue date:	12/13/1974
From:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:	Searls F PACIFIC GAS & ELECTRIC CO.
References
NUDOCS 8102180272
Download: ML19351F690 (1)

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DIRECTOR ATE OF REGULATORY OPER ATIONS i

REGION V 1990 N. CALIFORNIA BOULEVARD WALNUT CREEK PLAZA SUITE 202 s

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8 WALNUT CREEK CALIFORNI A, 94596 g

DEC 131974 Pacific Gas and Electric Company Docket No. 50-133 77 Beale Street San Francisco, California 94106 Attention: Mr. Frederick T. Searls Vice President & General Counsel Gentlemen:

It is our understanding that, as a result of a recent discussion with the Directorate of Licensing, PG&E will submit a 30-day report describing the cause of the failure of the Humboldt Bay Reactor feedwater sparger U-bolt clamps and the corrective measures taken, including a description of the modification of the sparger clamp design. This information was requested to supplement your report. dated November 27, 1974.

Sincerely, l

R. H. Engelken l

Director cc:

J. C. Carroll, PG&E A. Roisman, Berlin, Roisman & Kessler l

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