ML19257B718
| ML19257B718 | |
| Person / Time | |
|---|---|
| Issue date: | 12/05/1979 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML19257B717 | List: |
| References | |
| REF-QA-99900259 99900259-79-2, NUDOCS 8001180194 | |
| Download: ML19257B718 (2) | |
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Combustion Engineering, Inc.
C-E Avery Division Docket No. 99900259/79-02 NOTICE OF DEVIATION Based on the results of an NRC inspection conducted on October 16-19, 1979, it appeared that certain of your activities were not conducted in full compliance with NRC requirements as indicated below:
A.
Criterion V of Appendix B to 10 CFR 50 states in part, " Activities affect-ing quality shall be prescribed by documented instructions, procedures, or drawings, and shall be accomplished in accordance with these instructions, precedures, or drawings.
Deviations from ther.e requirements are as follows-1.
Detailed Welding Procedure (DWP) Nos. III-35-8.8-21, Revision 02, and VI-35-8.8-12, Revision 01, which were observed in use, respectively, on Job Nos. 907-0395-300andg68-1013-300, required an interpass temperature range 60 F to 350 F to be maintained during welding.
Contrary to the above, the welders involved in depositing welds on the above jobs were not equipped to verify compliance with the 350 F max-imum interpass temperature requirement.
(See DetailsSection I, para-graph D.3.a.).
2.
ASME Code Section III, Subsection NB-2430 states in part, "... Coupons shall be tested in the as-welded condition or they shall be tested in the applicable postweld heat treated etndition when the production welds are to be postweld heat treated. The postweld heat treatment holding time shall be at least 80% of the maximum time to be applied to the weld metal in production application."
Contrary to the above, 7018 electrodes, qualified at a ten (10) hour postweld heat treatment holding time, were used on Job. No. 158-1209 which subsequently received seventeen and one quarter (174.) hours postweld heat treatment time at temperature. Therefore, these elec-trodes are not qualified in that the postweld heat treatment holding time was just 58% of the maximum time applied to the weld metal in the production application.
(See DetailsSection I, paragraph E.3.a.)
B.
C-E Avery's letters of corrective action dated December 7,1978, and August 21, 1979, relative to the use of detailed welding procedures (DWP) not being qualified for the total postweld heat treatment (PWHT) times used 1769.168'.
8 8001170tet9 4-
2 in production welding, and as identified during two (2) consecutive NRC inspections, state in part, "All other welding procedures, related to postweld heat treatment, have been reviewed and are in compliance.
and, "...Any new DWPs for components with notch toughness testing requirements will be qualified for the maximum amount of PWHT time allowed."
Contrary to the above, another DWP (BHR 10-9, revision 00) has been identified as being used for welding on a reactor coolant pump casing in which it was not qualified for the PWHT time at temperature used in production welding.
(See DetailsSection I, paragraph F.3.a.)
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