ML20236V360
| ML20236V360 | |
| Person / Time | |
|---|---|
| Issue date: | 07/29/1998 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20236V354 | List: |
| References | |
| REF-QA-99900404 NUDOCS 9808030113 | |
| Download: ML20236V360 (2) | |
Text
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NOTICE OF NONCONFORMANCE Westinghouse Electric Company I
Docket No. 99900404 -
)
Based on the results of an NRC inspection conducted June 15-17,1998, it appears that certain of -
your activities were not conducted in accordance with NRC requirements.
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A.'
~ 10 CFR 50 Appendix B, Criterion lli" Design Control" requires, in.part, that measures be established to assure that design changes, including field changes, shall be subject to design control measures commensurate with those applied to the original
. design. Further, these measures shall assure that the design basis for structures systems and components are correctly translated into specification', drawings, procedures and instructions and provide for verifying the adequacy of design, such as by the performance of design reviews.
Section 4.5, " Design input" of Westinghouse Energy System Business Unit (ESBU)
Quality Management System (QSM) document (quality assurance topical report),
Revision 2, dated May 29,1997, states, in part, that Engineering is responsible for
. ensuring that the design output complies with design input requirements, customer and regulatory requirements, and considers the safe functioning of the designed items.
Contrary to the above.
1 Westinghouse had not adequately completed design reviews for the serviceability of the remaining ice basket sheet metal screws (potentially susceptible to in service failures) at the Watts Bar Nuclear Plant.
Specifically, the June 22,1995 Westinghouse assessment of this condition failed to incip& a desen review of the cracking identified in TVA Central ~
Laboratories Services Technical Report, " Watts Bar Nuclear Plant, Ice Condenser Basket Screws," dated June 2,1995, that had been provided to Westinghouse by fax on June 8,1995. Additionally, the Westinghouse assessmeat did not address the potential for failed ice basket segments to
. impact and damage the air handling units ' ithin the ice condenser, which w
could introduce glycol into the sump potentially affecting emergency core cooling system pe:Tormance. (99900404/98-02-02) 2.
Westinghouse did not translate design basis information for material type, hardness and strength level for the ice basket sheet metal screws into ice basket drawings 1145E10 and 1191E57, Revision 7. Further, the goveming '
design specification (952745) stated that the material requirements for ice basket components would be described in these drawings. This condition L
appeared to be the basis for a Licensea Event Report, submitted to the NRC by Duke Power Company in 1990, which reported the installation of ice
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condenser screws of the wrong meterial due to a lack of material
. specification on the drawings. (99900404/98-02-03)
B.
10 CFR 50 Appendix B, Criterion V " Instructions, Procedures, and Drawings" requires, in part, that activities affecting quality shall be accomplished in accordance with documented instructions.
Section 5.0," Document and Data Control" of Westinghouse ESBU QSM document, Revision 2, dated May 29,1997, states, in part, that all activities affecting quality of items and services are accomplished in accordance with controlled documents such as quality system manuals, procedures, work instructions, and controlled data such as customer order requirements.
Contrary to the above, potential conditions adverse to safety pertaining to failed ice baskets sheet metal screws at the D.C. Cook nuclear plant had not been entered into Westinghouse's 10 CFR Part 21 review program, as required by Section ill c' Westinghouse procedure 21.0 " Identification and Reporting of Conditions Adverse to Safety," Revision 2. Specifically, on or about June 1,1998, Westinghouse received Gelles Laboratories Report " Metallurgical Evaluation of Screws From Cook Uni'.1 Ice Baskets," dated May 1998, which identified a number of potential causes, including quench induced cracks, for failed ice basket sheet metal screw (99900404/96 04)
Please provide a wntten statement or explanation to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. 20555 with a copy to the Chief, Quality Assurance, Vendor inspection, and Maintenance Branch, Division of Reactor Controls and Human Factors, Office of Nuclear Reactor Regulation, within 30 days of the date of the letter transmitting this Notice of Nonconformance. This reply should be clearly marked as a " Reply to a Notice of Nonconformance" and should include for each nonconformance: (1) the reason for the nonconformance, or, if contested, the basis for disputing the nonconformance, (2) the corrective steps that have been taken and the results achieved, (3) the corrective steps that will be taken to avoid further noncompliance, and (4) the date when your corrective action will be cornpleted.
Where good cause is shown, consideration will be given to extending the response time.
Dated at.Rockville, Maryland this 29th day of July 1998 L
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