ML20054H070

Interim Deficiency Rept Re Pipe Support Strut Swivel Bearings,Initially Reported on 820514.Nine Supports Affected.Addl Investigation Initiated.Next Rept Will Be Submitted by 821008

ML20054H070
Person / Time
Site:	Fermi
Issue date:	06/11/1982
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-58074, NUDOCS 8206220543
Download: ML20054H070 (2)

Text

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b3 i3 a 4 28 June 11, 1982 EF2-58074 Mr. James G. Keppler, Regional Administrator Region III U.S. Nucicar Regulatory Ccmnission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

Interim Report of 10Cm50.55(c) on Defective Pipe Support Strut Swivel Dearings (#68)

Dear Mr. Keppler:

On May 14,1982, Detroit Edison's Mr. H.A. Walker, Supervisor-Construction Quality Assurance, telephoned Mr. H. Wescott of NRC Region III to report on a problem with defective pipe support strut swivel bearings at the Fermi 2 site.

Detroit Edison had determined that.the Fermi 2 Project had a problem with pipe support strut swivel bearings. This was the same type of problem described in IE Circular 81-05.

IE Circular 81-05 states: "The specific deficiencies identified involved the clamp end of the sway strut beccming loose, and possibly being disen-gaged fran the bushing. This could result in a large gap in the support system not accounted for in the original analysis."

The defect was discovered during an investigation initiated as the result of this circular. As of the present time, nine (9) supports have been determined to be affected. Additional investigation is being conducted to determine the extent of the problem.

l This is being reported as a 50.55(e) since the IE Circular does not require j a written response frcm the utility.

l Another report on this item, either interim or final, is scheduled to be

! sent to you on or before October 8,1982. If you have questions concerning i

this matter, please contact Mr. H.A. Walker, Supervisor-Construction Quality l Assurance.

i l Very truly yours, b

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! DAN / HAW /cp 8206220543 820611 .,c s a PDR ADOCK 05000341 J * "/

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Mr. James G. Keppler, Regional Administrator June 11, 1982 Page Two EF2-58074 cc: Mr. Richard DeYoung, Director Office of Inspection and Enforcement Division of Reactor Inspection Prograrrs U.S. Nuclear Regulatory Cm missitn Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Cm mission 6450 North Dixie Highway Newport, Michigan 48166