ML20010C957

Final Deficiency Rept Re Cut Reinforcing Bar,Initially Reported 791227.Overstressed Slabs Will Be Reinforced

ML20010C957
Person / Time
Site:	Fermi
Issue date:	07/29/1981
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-54138, NUDOCS 8108210270
Download: ML20010C957 (1)

Text

. .

AD18 955y Donald A. Wells Ml nag p Assurance Edison EEEsm-July 29,

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s EF2-54 ' '

c Mr. James G. Keppler, Director s dlV[on i /,( 'g NIA _,

Region III u - '

U.S. Nuclear Regulatory Cmmission lM 'a'7S!jgron fl 799 Roosevelt Road Glen Ellyn, Illinois 60137 Qq,f , 4'

//*

Subject:

Final Report of 10CFR50.55(e) Item on Cut Reinforcing Bar YM25k m \ \/ /

I

Dear Mr. Keppler:

This is subnitted as Detroit Edison's final report on the Cut Reinforcing Bar problem which was reported per 50.55(e) requirenents.

The item was originally reported to Mr. F.J. Jablonski of NRC-Region III by Mssrs. R.W. Barr and W.M. Street of Detroit Edison on Decerrber 27, 1979. At that tine, it had been determined that cut rebar may have resulted in a re-duced floor load capacity in the Reactor Auxiliary Building at the Fermi 2 site.

Sargent and Lundy has reviewed the Reactor Auxiliary Building, and has found l all floor slabs capable of supporting the original design loads except for l the roof slab area in the end panel along Column Line 9 between Columns G and H. An "as-built" analysis will be perforned by Sargent and Lundy on this 4" riab for new loading criteria. All overstressed sicbs will be re-inforr- 3 at that tine.

, If you have questions concerning this matter, please contact Mr. H.A. Walker,

! Supervisor-Construction Quality Assurance.

Very truly yours, f V l

l DAW / HAW /cp

(

cc: Mr. Victor Stello, Jr., Director Office of Inspection and Enforcement Division of Reactor Inspection Programs hey]

U.S. Nuclear Reculatory Cmmission A Washington, D.C. 20555 Mr Bruce Little, Resident Inspector  !

U.S. Nuclear Regulatory Cmmission Resident Inspectors Office 6450 North Dixie Highway Newport, Michigan 48166 8108210270 810729 DR ADOCK 05000 f[jg y 4_

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