ML19257A595
| ML19257A595 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 12/06/1979 |
| From: | Peoples D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19257A592 | List: |
| References | |
| NUDOCS 8001040719 | |
| Download: ML19257A595 (3) | |
Text
Commonwealth Edison one First National Plaza, Chicago. tilinois Address Reply to: Post Office Box 767 Chicago, lihnois 60690 December 6, 1979 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60157
Subject:
Byron Station Units 1 and 2 Response to IE Inspection Report hos. 50-454/79-16 and 50-455/79-16 NRC Docket Nos. 50-454 and 50-455 Reference (a): November 7, 1979 letter from G. Fiore111 to Cordell Reed transmitting IE Inspection Report Nos. 50-454/79-16 and 50-455/79-16
Dear Mr. Keppler:
Reference (a) transmitted an inspection report regarding an inspection conducted on October 23-25, 1979 by Mr. E. W. K. Lee of activities at Byron Station.
That report identified one apparent item of non compliance with NRC requirements.
Attachment A to this letter contains Commonwealth Edison Company's response to these items.
Please address any additional questions that you might have to this office.
Very truly yours, M [
D. L. Peoples Director of Nuclear Licensing LOD /dg 1690 270 attachment DEC 7 1979
" 7/9 soo104e
Docket No. 50-454
~
ATTACHMENT A D #*D "D M} ~ ga?
I Tfl l INFRACTION (79-16-02) yg g
10CFR50, Appendix 3, Criterion V states, in part, that, " Activities affecting quality shall be prescribed by documented instructions, procedures...and shall be accomplished in accordance with these in-structions, procedures or drawings.
Instructions, procedures or drawings shall include appropriate quantitative or qualitative acceptance criteria for determining that important activites have been satisfactorily accomplished."
Commonwealth Edison Company Topical Report No. CE-1-A, Revision 9, Section 5 states, in part, that, "The quality assurar.cc actions carried out for design, construction, testing and operation activi-ties will be described in documented instruction, procedures, draw-ings, specifications or checklists.
These documents will also reference applicable acceptance criteria which cust be satisfied to assure that quality related activity had been properly carried out."
The weld data sheet of weld t4o. 216 on Isometric drawing No. RC-1-1 requires weld end detail be prepared in.accordance with Hunter Corporation welding procedure No. HCWP-52 and the fit up and weld end preparation are identified as a hold point.
Contrarv to the above, on October 23, 1979, the inspector determined that (1) Procedure No. HCWP-52 does not contain weld end detail
(" sock-o-let" joined by full penetration corner weld) applicable to weld No. 216 and (2) fit-up and weld end preparation was inspected and accepted by a QC inspector on October 19, 1979.
Upon questioning the QC inspector relative to the acceptance criteria for the fit up and weld end preparation, it was the NRC inspector's understanding that if the procedure referenced in the weld data sheet does not con-tain the applicable end detail, the end detail does not have to be checked.
It was further learned that the " sock-o-let" was cut out from a shop fabricated pipe spool and veld end detail for the " sock-o-let" was not specified and no instruction was given to the crafts-men.
CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVED Welding Procedure Specifications which will be utilized for attachment of branch connection fittings such as sock-o-lets, weld-o-lets, etc.
are being reviewed and revised to incorporate applicable weld end preparation, weld gap, and fit up criteria.
Due to the fact that weld end preparation and fit up criteria are not quantitatively stated in the applicable industry design standards, a review of the various nar.uinnturcr's stocrin-d.= is b inI 3 rformeo to establish c :. ;ific criteria to ba incorporated.
1690 271
.' ATTACHMENT A
- Page 2 CORRECTIVE ACTION TAKEN TO AVOID FURTHER N0!CC"PLTANCE The site QA Manager for Hunter Corporation has been directed to con-duct a seminar session with all Hunter inspection personnel to discuss inspection acceptance criteria.
The purpose of this training is to ensure that all inspectors understand that acceptance criteria, either quantitative or qualitative, are required for each.'ispection and to ensure that all inspectors know where and how to ob;ain this inforca-tion.
The Hunter site QA Manager was also directed to incorporate this subject into the indoctrination and training progran received by inspector candidates prior to certification.
DATE h' HEM FULL COMPLIANCE VILL BE ACHIEVED February 1, 1980.
o 6
1690 272