ML20195H076
| ML20195H076 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 10/16/1987 |
| From: | Butterfield L COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8801150080 | |
| Download: ML20195H076 (3) | |
Text
.
7~
-Commonwealth Edison 5
(
,1 / One First National P!ala. Chicago, lilinois J Address Reply to: Post Offica Box 767
(
v b/ Chicago, Illinois 60690 0767 October 16, 1987 Mr. A. Bert Davis Regional Administrator U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Braidwood Station Unit 2 Response to Inspection K9 ports No. 50-457/87-020 NRC Docket No. 50-457 Reference (a):
J. J. Harrison letter to C. Reed dated September 18, 1987
Dear Mr. Davis:
This letter is in response to the inspection conducted by Mr. W. C. Liu on June 15 through August 27, 1987, of activities at Braidwood Station. Reference (a) indicated that certain activities appeared to be in violation of NRC requirements. The Commonwealth Edison Company response to the Notice of Violation is provided in the enclosure.
If you have any further questions on this matter, please direct them to this office.
Very truly yours, L. D. Butterfield Nuclear Licensing Manager Enclosure cc: NRC Resident Inspector - Braidwood NRC Document Control Desk l
l l
OCT 19Y 3716K 8801150080 871016 1
PDR ADOCK 0500 7
g Sl?ol
.s 6
ENCLOSURE Commonwealth Edison Company Response to Inspectica Report 457/87-020 Violation (457/87-020-01).
Appendix B of 10 CFR 50, Criterion XVI, as implerdented by CECO-Topical Report CE-1-A, "Quality Assurance program for Nuclear Generating Stations", and CECO Corporate Quality Manual, Nuclear Generating Stations, "Quality Requirements", requires that measures shall be established to assure that conditions adverse to quality are promptly identified and corrected.
Contrary to the above, during the field inspection of pipe supports, certain activities were not accomplished in accordance with these requirements in that the following piping support deficiencies were identified:
1.
Support No. ICC0315X, Revision 0 - Nuts on the load stud were loose, one lock nut was missing, the snap ring on the rear bracket was missing, and an incorrect support number tag was attached to the strut along with the correct one.
2.
Support No. 2CC19017S, Revision B - Two of the four washers between the snubber extension tube flange and the housing were loose.
3.
Support No. 2SIl40llX, Revision A - The locking clip on top of the rear bracket was broken.
4.
Support No. 2RH07026S, Revision A - The snubber was completely painted including the piston shaft.
5.
Support No. 2CV25052S, Revision A - Washers were not installed as required by the instruction.
Response
Commonwealth Edison acknowledges the identified deficiencies.
Corrective Action Taken and Results Achieved For Item #1.
phillips, Getschow Company Nonconformance Report (NCR) No. 7182 i
was initiated and dispositioned to perform a 100% reinspection of all locking devices on all Unit 2 ASME Section III struts. This inspection is underway with over 50% of strut inspections completed.
Identified discrepancies are being repaired.
For Items #2, 3, & 5.
phillips, Getschow Company NCR No. 7171 was initiated and dispositioned to perform a 100% reinspection cf pivot mount screws and pivot pin retaining washers on Unit 2 ASME Section III snubbers of sizes 1, 3, and 10.
This represented 103 snubber inspections of which 7 minor discrepancies were identified and corrected.
i
.l s
For Item #4.
phillips, Getschow Company NCRs No. 7144 and No. 7151 were initiated to track this item. We believe this to be an isolated incident because the four snubbers that were identified to have been painted were within one area and the painting took place subsequent to the final lfnewalk completed on June 1, 1987. Additionally, during the inspection conducted under NCR No. 7171 no additional painted snubbers were identified. This item was dispositioned by the fact that three of the snubbers (2RH07013S, 027S, 025S) were deleted through an S & L piping reroute and were removed and the fourth hanger 2RH07026S was cleaned and inspected for proper operation and reinstalled.
Corrective Action Taken to Avoid Further Violation For Item #1.
phillips, Getschow Company has reemphasized this inspection attribute to all of their Quality Control inspectors.
For Item # 2, 3, & 55 phillips, Getschow Company has reemphasized this inspection attribute to all of their Quality Control inspectors.
For Item #4.
A class was conducted by phillips, Getschow managetent to train the paint contractor supervision (Midway). This training included guidance on how to recognize the portions of snubbers that can be damaged by paint.
Date of Full Compliance For Item #1.
The actions of phillips, Getschow Company NCR No. 7182 are expected to be completed by October 31, 1987.
For Items #2-5. Full compliance has been achieved.
3716K
.>