ML20069H605

Interim Deficiency Rept Re Defective Pipe Support Strut Swivel Bearings.Initially Reported on 820514.Addl Insp Requirements for Field Inspectors Will Be Developed Per IE Circular 81-05.Next Rept Will Be Submitted by 820204

ML20069H605
Person / Time
Site:	Fermi
Issue date:	10/08/1982
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-59399, NUDOCS 8210190657
Download: ML20069H605 (2)

Text

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Donald A. Wells ager y Assurance Edison EE!*

October 8, 1982 EF2-59399 Mr. James G. Keppler, Regional Administrator Region III U.S. Nuclear Regulatory Cmmission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

Interim Report of 10CFR50.55(e) Item on Defective Pipe Support Strut Swivel Bearings (#68)

Dear Mr. Keppler:

This additional interim report on the defective pipe support strut swivel bearings problem has been prepared to provide the current status of this problem.

This item was originally reported to Mr. H. Wescott of NRC Region III by Detroit Edison's Mr. H.A. Walker, Supervisor-Construction Quality Assurance, on May 14, 1982.

As previously reported, IE Circular 81-05 states: "The specific deficiencies identified involved the clamp end of the sway strut becming loose, and possibly being disengaged frcm 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 a result of this circular. At that time, nine (9) supports had been determined to be affected.

I A meeting was held on September 23, 1982, by Project Quality Assurance, Hanger Engimering and Site Management to discuss the preliminary results of the strut swivel bearing walkdown inspection.- Due to the high rate of discrepancies, it was agreed that additional inspection requirements for field inspectors should be developed and incorporated into current procedures. Additionally, a retro-fit program is to be developed to address previously installed strucs.

Another report on this item, either interim or final, is scheduled to be sent to you on or before February 4,1983. If you have questions concerning this matter, please contact Mr. G.M. Trahey, Assistant Director-Project Quality

) Assurance.

Very truly yours,

[. [

DAW /DF/cp.

8210190657 821008 +

PDR ADOCK 05000341 *-

s V f o Q OCT 1 5 1982 -

, o l

Mr. Jmes G. Keppler, Regional Administrator October 8, 1982 Page Two EF2-59399 cc: Mr. Richard DeYoung, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Cmmission Washington, D.C, 20555 Mr. Bruce Little, Senior Resident Inspector U.S. Nuclear Regulatory Cmmission 6450 North Dixie Higlway Newport, Michigan 48166

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