ML19321A081
| ML19321A081 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/15/1980 |
| From: | Widner W GEORGIA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-14, NUDOCS 8007220422 | |
| Download: ML19321A081 (2) | |
Text
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Georma Power Comaany 200 Peacntree Street
.g Post o'hce Box 4545 o
N.anta. Georpa 30302 T+eonone 404 522 6060 L
Georgia Power Power Generation Department t o.mc..rn nyc ymm July 15, 1980 J
U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement
REFERENCE:
Region II - Suite 3100 RII: JP0 101 Marietta Street, N.W.
50-321 Atlaata, Georgia 30303 I&E Bulletin 79-14 ATTENTION: Mr. James P. O'Reilly Gentlemen:
Our letter of February 29, 1980, regarding I&E Bulletin 79-14, re-quested an extention to August 1,1980, to complete verification of seismic analysis of as-built piping systems in accessible areas. At the time, it was estimated that resurveillance would be completed by May 1, 1980, with engineering verification completed in the following 12 weeks.
A total of 2,324 hangers required resurveillance, of which 1,480 were in normally accessible areas during plant operation. A total of 22,112 manhours was spent inspecting, reviewing and approving these hangers. By April 24, 1980 the hanger surveillance field work was com-pleted in accessible areas and all packages had been forwarded to Bechtel for engineering analysis.
Bechtel received 141 packages for accessible areas. As of July 14, 1980, pipe support evaluation was 66% complete for these packages. Addi-tionally,100 packages were selected for pipe stress evaluation. Stress modeling is 73% complete for accessible areas. Computer re-analysis of selected stress models will procede when the initial evaluation has been completed.
Of the approximately 1,000 hangers evaluated so far, a total of 2 LERs has been found and reported.
Despite the significant progress made, Bechtel has been faced with an unforeseen workload from other plant problems, and there is now little possibility that the August 1, 1980 deadline will be met.
. Based on the progress made and the small number of reportable occur-ences, we hereby request an extention to October 1,1980 to complete the verification of the seismic analysis of as-built piping systems.
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CleorgiaPcnver a$k U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement July 15, 1980 Page Two Inaccessible piping will be reverified during future outages. Sur-veillance of inaccessible areas will be completed by the next refueling outage. We again point out that the verification of Unit 2 design, and the analysis.of the Unit I data to date would indicate that continued operation during this period of verification is not unsafe and the public's health and safety are not adversely affected.
If you have any questions or comments in this regard, please contact my office.
Very truly yours, WW W. A. Widner Vice President and General Manager Nuclear Generation REB /ldm xc: Director of the Office of Inspection and Enforcement b/0irector of the Division of Operating Reactors, Office of Nuclear Reactor Regulation i
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