ML19347C283

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Interim Deficiency Rept Re Mechanical Splices Not Meeting Visual Insp Requirements.Nonconformances Were Evaluated & Mechanical Splices Modified to Meet Strength Requirements
ML19347C283
Person / Time
Site: Marble Hill
Issue date: 09/18/1980
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)
Shared Package
ML19347C280 List:
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8010170206
Download: ML19347C283 (1)


Text

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PUBLIC SERVICE INDIANA September 18, 1980 S. W. Shields Senior Vice President -

Nuclear Division Mr. James G. Keppler, Director Docket Nos.: STN 50-546 U. S. Nuclear Regulatory 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:

g On July 7, 3980, Mr. C. E. Chmielewski of Public Service Company of Indiana, Inc., (PSI) notified your office of a potentially reportable item as required by 10 CFR 50.55(e). As part of the Construction Verification Program, all accc.sible mechanical splices (cadwelds) previously inspected and accepted, were reinspected in accordance with SPP-6.

A number of cadwelds were identified as not meeting the visual inspection requirements seg forth in SPP-6. These nonconformances were thoroughly evaluated, including radiography and tensile testing of some of the cadweld splices in question. The conclusion of this evaluation was that mechanical splices at Marble Hill will meet design strength requirements and are acceptable. A more detailed description of this matter is available in Section 6.0 of the report on the Construction Verification Program which has been previously submitted to your office.

As this deficiency would not have affected adversely the safety of operations of the plant, this item is not reportable. If you have any questions on this matter, please feel free to contact me.

Sincerely, S. W. Shields TDG/cg cc: Director of Inspection and Enforeccent U. S. Nuclear Regulatory Co= mission Washington, D. C. 20555 E. R. Schweibins, P. E.

J. J. Harrison iSEP 2 21950 P.O. Co A 190. W.V Lh ngton, inJ un.a 471G2 812 293 4441 8010170 2d 8