ML20028E831
| ML20028E831 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 01/20/1983 |
| 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 | |
| 10CFR-050.55E, 10CFR-50.55E, S82-21, SVP-0005-83, SVP-5-83, NUDOCS 8301280225 | |
| Download: ML20028E831 (2) | |
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4 PUBLIC SERVICE INDIANA S. W. Shields January 20, 1983 Senior Vice President.
S82-21 Nuclear Division SVP-0005-83 Mr. James G. Keppler, Docket Nos.: STN 50-546 Regional Administrator STN 50-547 U. S. Nuclear Regulatory Commission Construction Permit Nos.:
Region III CPPR - 170 799 Roosevelt Road CPPR - 171 Glen Ellyn, Illinois 60137 Marble Hill Nuclear Generating Station - Units 1 and 2
Dear Mr. Keppler:
On August 18, 1982, 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). This problem involves embedded plates in the primary shield wall having deformed wire anchors missing or the welds between the plate and anchor being cracked. These plates had been installed prior to the cessation of safety related work in August, 1979.
For the subject embedded plates, alternative support mechanisms were utilized which resulted in acceptable structural integrity without taking credit for any of the deformed wire anchors in question.
Procedure reviews have been made to establish a cause for missing or broken deformed wire anchors. Tests have been performed in order to establish the failure mode of the cracked welds. PSI ~
evaluation of the results of these reviews and tests is continuing.
This letter is intended to fulfill the requirements of an interim report as defined in 10 CFR 50.55(e). A further report will be filed on or before May 11, 1983. If you have any questions regarding this matter, please contact. me at your convenience.
Sincerely, O
S. W. Shields 9
SWS/LGY/bak
.l A N 2 41983 P. O. Eox 190, New Washington, Indian a 47162 812. 289.1000
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i PUBUC SERVICE INotANA Letter:
J. G. Keppler S82-21
.SVP-0005-83 I
.cc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555 i
J. E. Konklin J. J. Harrison 1
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