ML20054F766

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Final Deficiency Rept Re Defective GE-I&SE Welds,Initially Reported 801024.Defects Noted in Jet Pump Diffuser to Adapter Welds & safe-end Mod Welds.Repair Work Completed
ML20054F766
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 05/26/1982
From: Wells D
DETROIT EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-58-072, EF2-58-72, NUDOCS 8206170302
Download: ML20054F766 (1)


Text

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~ Donald A. Wells

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May 26, 1982 EF2-58,072 Mr. James G. Keppler, Regional Arhninistrator Region III U.S. Nuclear Regulatory Cmmission 799 Roosevelt Road Glen Ellyn,. Illinois 60137

Subject:

Final Report of 10CFR50.55(e) Item on Defective GE-ISSE Welds (#31)

Dear Mr. Keppler:

This is Detroit Edison's final report on the defective GE-I&SE welds problem.

The problem was originally reported to Mr. P.A. Barrett of NRC Region III by Detroit Edison's Mr. T.A. Alessi, Director-Project Quality Assurance on i

October 24, 1980.

At that time, a review of nineteen (19) radiographs in the G-33 system, which is a drain line to the reactor vessel, revealed problems with seven (7) out of the nineteen (19) welds. These radiographs were previously accepted by a contractor that had since left the site.

Following an investigation, it was determined that additional defects had been noted in reviewing radiographs of other previously accepted GE-I&SE welds. The welds were jet pump diffuser to adapter welds and safe end rrodificaticn welds.

l Repair work on the defective welds has been completed. The welds are now acceptable.

If you have questions concerning this matter, please contact Mr. H.A. Walker, Supervisor-Construction Quality Assurance.

Very truly yours, q

i Ik DAW / HAW /cp cc: Mr. Richard DeYoung, Director l

Office of Inspection and Enforcement l

Diviston of Reactor Inspection Programs l

U.S. Nuclear Regulatory Cmmission Mr. Bruce Little, Resident Inspector I

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