ML20137C403

Forwards LC Shao 850607 Memo Forwarding Technical Assessment of Significance of Util U-bolt Sample,Per Util Motion for Summary Disposition.Sample Reasonably Representative.Util Committed to 100% Insp of U-bolts

ML20137C403
Person / Time
Site:	Comanche Peak
Issue date:	06/28/1985
From:	Noonan V NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
To:	Taylor J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
Shared Package
ML20136F556	List: ML20136F552 ML20136G199 ML20137A035 ML20137C368 ML20137C403 ML20137C427 ML20137C447 ML20137D123
References
NUDOCS 8508220255
Download: ML20137C403 (1)

Text

Enclosure 4

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MEMORANDUM FOR: James Taylor, Director Office of Inspection and Enforcement FROM: Vincent S. Noonan, Director Comanche Peak Project Division of Licensing Office of Nuclear Reactor Regulation

SUBJECT:

POTENTIAL MATERIAL FALSE STATEMENT BY I APPLICANTS ON U-BOLT SAMPLE

Reference:

Memorandum from L.C. Shao to V.S. Noonan dated June 7, 1985 subject: CPSES - Assessment of Significance of Applicants' U-bolt Sample Recently, IE requested that the Comanche Peak staff provide a technical assessment of the significance of the applicant's U-bolt sample as discussed in the applicant's motion for sumary disposition. Enclosed with this memorandum is a memorandum from L. C. Shao to me providing this assessment.

The staff has. concluded that while the applicant's sample was not random in the pure statistical use, it was reasonably representative. The applicant's characterization of their field survey as " random" and " representative" is not technically important form the standpoint of safety with respect to stability of the pipe supports and stresses and in the U-bolts and supported piping. The applicants have comitted to conduct a 100 percent inspection of the U-bolts in the plant during which all U-bolts will be torqued to levels to be detemined by applicant to be high enough to assure that the U-bolt assemblies will not rotate around the pipe nor walk axially along the pipe while transmitting their design loads.

I hope the above infomation will assist you in concluding your work regarding applicants potential material false statemen

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PDR ADOCK O$00 Comanche P ak Pro ect A Division f Licensing Office of Nuclear Reactor Regulation

Enclosure:

Memo, Shao to Noonan dated 6-7-85 cc: H. Denton D. Eisenhut H. Christenbury J. Scinto L. Chandler S. Treby R. Vollmer W. Chen

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