ML20002C367
| ML20002C367 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 12/15/1980 |
| From: | Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 1215804021, IEB-79-03A, IEB-79-3A, NUDOCS 8101100177 | |
| Download: ML20002C367 (2) | |
Text
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w S. W. Shields senior vice Presdent.
Nuclear Dmssn December 15, 1980 Mr. James G.
Keppler, Director Docket Nos. : STN 50-546 U. S. Nuclear F egulatory Commission STN 50-547 Region III Construction Permit Nos.:
799 Roosevelt Road CPPR - 170 Glen Ellyn, Illinois 60137 CPPR - 171 Marble Hill Nuclear Generating Station - Units 1 and 2
Dear Mr. Keppler:
On August 13, 1980, Mr. T. D. Geib of Public Service Company of Indiana Inc. (PSI) notified your office of a potentially reportable item as required by 10 CFR 50.55(e). During a receipt inspection reverification of auxil' ary steel performed by the Cherne Contracting Corporation (CCC) several 3
j deficiencies were identified. A number of pieces of auxiliary steel, steel used to suppo:
'on hangers, had, undercut welds, undersize fillet q
welds and incorrect..
contour, pinholes or drawing non-compliances.
While this steel is conservatively designed, failure of some pieces might result if subjected to the extreme loadings which might occur during certain design basis events.
I As a result of the deficiencies discovered during reverificat3on inspection, i
CCC undertook a 100% reinspection of their auxiliary steel. The reinspection I
revealed additional deficiencies. PSI has examined some of 2hese deficiencies and determined that the structural integrity of the support steel was not impaired for those pieces examined. However, due to the nunber of deficiencies generated during the 100% reinspection of auxiliary steel, it would require an extensive ev J aation to determine if all pieces of auxiliary steel were adequate to perform their intended function. Therefore all affected pieces of auxiliary steel will be reworked as necessary in accordancq,with approved procedures.
As part of the effort to adcress the Order Confirming Suspension of Construction CCC has strengthened the inspection practices used in their receipt insp<ction program. It is anticipated that this strengthening of CCC's prc. am will prevent problems similar to this one from occurring i
in the futurs DEC 8 %
810110 0 M es P.O. Box 190, New Washington, Indiana 47162 812. 293.4441
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a PUBLIC SERVICE INOtANA Letter:
Mr. Keppler December 15, 1980 This letter is intended to fulfill the requirements of a final report as defined in 10 CPR 50.55(e).
If you have any questions about this report, please feel free to contact me.
Sincerely, S.
W.
Shi TDG/cq Director of Inspection and Enforcement cc:
U. S. Nuc' ear Regulator. Co:nission Washington, D.
C.
20555 E. R.
Schweibinz, p. E.
J. J.
H2rrison i
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