ML20024J018
| ML20024J018 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 08/25/1993 |
| From: | Greger L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20024J012 | List: |
| References | |
| 50-483-93-10, NUDOCS 9308310155 | |
| Download: ML20024J018 (2) | |
Text
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i NOTICE OF VIOLATION Union Electric Company Docket No. 50-483 Callaway Plant License No. NPF-30 During an NRC inspection conducted on June 1 through July 31. 1993, a violation of NRC requirements was identified.
In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C, the violation is listed below:
10 CFR 50, Appendix B, Criterion Ill, Design Control, requires, in part, that measures shall be established to assure the design basis for structures are correctly translated into drawings; that design control measures provide for verifying and checking the adequacy of the design; and that design changes are subject to design control measures commensurate with those applied to the original design.
Contrary to the above, the design basis was not correctly translated into drawings; measures did not provide for verifying and checking the adequacy of the design; and design changes were not subject to design control measures commensurate with those applied to the original design in the following examples:
A.
Hanger Drawing No. 2-GN01-C003/232, Revision 2, specified certain attachment welds that resulted in a fixed connection, whereas, the analysis assumed it was a pinned connection.
(483/93010-01B)
B.
Hanger Nos. 2-GN01-C009/252 and 2-GN01-C019/252 could not be constructed l
using the structural members specified on the drawings.
(483/93010-OlH) l C.
Hanger Drawing No. 2-GN01-R009/252, Revision 2, specified dimensions that resulted in the support being active in the vertical direction, whereas, the piping analysis did not consider it active in this direction.
(483/93010-011)
D.
Hanger Drawing No. 2-GN01-R014/252, Revision 6, specified member lengths that resulted in an angular dimension of approximately 55, whereas, the support calculation utilized an angle of 45 (483/93010-OlJ)
E.
Calculations No. P-GN01-OlCMP, No. P-GN01-07 CMP, and No. P-GN02-09 CMP, did not calculate a bending moment and did not evaluate the effects of this bending moment on a shear lug weld.
(483/93010-OlA; ole; Olf)
F.
Calculation No. P-GN01-OlCMP utilized the incorrect torsional properties for the horizontal tube steel member.
(483/93010-010)
G.
The location of an axial restraint, Hanger No. 2-GN01-C020/231, was changed from the original piping analysis location and was not subject to design control measures concensurate with those applied to the original design.
(483/93010-01D) 9308310155 930825 PDR ADOCK 05000483 PDR G
e H.
For Hanger Drawing No. 2-GN02-R016-231, the tube steel wall thickness-was changed but the effect of the change was not subject to design control measures commensurate with those applied to the original design.
(483/93010-OlG)
When considered in the aggregate, this is a Severity Level IV violation (Supplement 1).
i Pursuant to the provisions of 10 CFR 2.201, Union Electric Company is hereby required to submit a written statement or explanation to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washirgton, D.C.
20555 i
with a copy to the U.S. Nuclear Regulatory Commission, Region III, 799 Roosevelt Road, Glen Ellyn, Illinois 60137, and a copy to the NRC Resident Inspector at the Callaway Nuclear Power Station within 30 days of the date of the letter transmitting this Notice of Violation (Notice). This reply should be clearly marked as a " Reply to the Notice of Violation" and should include:
(1) the reason for the violation, or, if contested, the basis for disputing the violation, (2) the corrective steps that will be taken and 1
results achieved, (3) the corrective steps that have been taken to avoid further violations, and (4) the date when full compliance will be achieved.
If an adequate reply is not received within the time specified in this Notice, a demand for information may be issued to show cause why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken. Where good cause is shown, consideration will be given to extending the response time.
l Dated at Glen Ellyn, Illinois
}
ON i
this if day of August
-L. Robert Greger, Chief l
Reactor Projects Branch 3 l
l l
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