ML19343D148

Interim Deficiency Rept Re Calibr of Torque Wrenches, Initally Reported on 810303.Torque Wrench Calibr Did Not Match Federal Specs as Indicated in Wismer & Becker Audit. Addl Rept to Be Issued by 810729

ML19343D148
Person / Time
Site:	Fermi
Issue date:	04/01/1981
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-49-963, NUDOCS 8104090603
Download: ML19343D148 (1)

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.p Apria-1, 1981 9 EF2-49,963 .

s < U Hr. James G. Keppler, Director Region ill U. S. Nuclear Regulatory Commission -

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-799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

Interim Report of a Potential 10CFR50.55(e) I ten on Calibration of Torque wrenches (#40)

Or Perch 3, 1981, Detroit Edison's Mr. H. A. Walker, Supervisor, Construction Quality Assurance, telephoned Mr. J. E. Konklin of NRC Region lli to report on a patential. problem with calibration of torque wrenches at the Ferni 2 Site.

lt had been noted during an audit of Wismer and Becker that there was a problem in the specification of calibration tolerances for calibration of torque wrenches. Vismer and Becker documents indicated that the tolerances to be used for torque wrench calibration match those of Federil Specification GGG-V-00636C when they actually did not. This tolerance has now been changed and is consistent with the Federal Standard. In addition to this, a number of wrenches were received f rom the Toledo Testing Laboratory exceeding calibration requirements without scecific notifications being made that they were out of calibration. A number of these wrenches were itseed and used.

We have no evidence at the present time that thi'; is a hardware probleu.

Investigation is continuing and appropriate action is being taken.

Another report, either interim er final, is scheduled to be sent to you on or before July 29, 1981. If you have questions concerning this matter, please contact Mr. H. A. Walker, Supervisor, Construction' Quality Assurance.

Very truly yours, l .

. N Donald A. Wells, Manaaer Quality Assurance HAW:mb

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cc: Victor Stello, Jr.

Bruce Little

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