ML19323C915
| ML19323C915 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/15/1980 |
| From: | Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 438, IEB-79-17, IEB-79-17-R1, NUDOCS 8005190409 | |
| Download: ML19323C915 (2) | |
Text
'~
y._,--.-,-
80 0519 0 @ p VIRGINIA ELucTurc ann Powan Co>arAwy Rrcatxonza,Vxmone rA 20261 May 15, 1980 Mr. James P. O'Reilly, Director Serial No.
438 Office of Inspection and Enforcement N0/FHT:baw U. S. Nuclear Regulatory Commission Docket No.
50-338 Region II License No.
NPF-4 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 IE Bulletin 79-17, Revision 1 North Anna Power Station Unit 1
Dear Mr. O'Reilly:
In response to the subject bulletin, we are forwarding the attached report for North Anna Unit 1.
If you have any questions or require additional information, please contact this office.
Very truly you fI.
1sz l
g B. R. Sylvia nager-Nuclear Operations and Maintenance cc: Director, Division of Operating Reactors Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555
Attachment North Anna Power Station Unit 1 IE Bulletin 79-17, Revision 1 Final Report 1.
All of the visual inspections of each system were performed monthly from December 1979 thru March 1980.
The normally inaccessible welds were visually examined during the cold shutdown in December.
These examinations were performed in accordance with Item 2 of IE Bulletin 79-17 Rev. 1.
During the examinations above, particular attention vas given to both insulated and non-insulated piping for evidence of leakage and/or boric acid residues.
No evidence of any defective welds was found during the examinations.
2.
On April 9 thru 12,1980 the ultrasonic examinations required by IE Bulletin 79-17, Rev. 1, Item 2 were performed on the following systems:
System No. Welds U.T. 's SI 41 RS 11 RH 2
QS 10
\\
CH 8
W Total The above examinations were focused on the weld root fusion zone and 1/2 inch on pipe I.-D.
No evidence of intergranular stress corrosion cracking was noted, as a result of the ultrasonic examinations.
3.
All of the above examinations were performed in accordance with Vepco approved procedures.
All persennel were qualified in accordance with SNT-TC-1A.
4.
All of the inspection reports and data sheets and all pertaining infor-mation will be on file in the Records Vault at North Anna Power Station.
l