ML18030A470

Advises That 800122 Ltr Describing Potential RO Re Coped Structural Floor Beams Determined Not Reportable Under 10CFR50.55(e)

ML18030A470
Person / Time
Site:	Susquehanna
Issue date:	07/14/1980
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:
References
PLA-492, NUDOCS 8007180282
Download: ML18030A470 (3)

Text

TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEr (215) 821 5151 NORMAN W. CURTIS Vice President- Engineering & Construction-Nuclear 881 5381 July 14, 1980 Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 SUSQUEHANNA STEAM ELECTRIC STATION NOTIFICATION OF A POTENTIAL DEFICIENCY COPED STRUCTKUZ FLOOR BEAMS ERs 100450/100508 FILE 840-4 PLA-492

Reference:

PPGL letter PLA-443 dated January 22, 1980

Dear Mr. Grier:

The referenced letter describes a condition which was submitted as being potentially reportable under the provisions of 10CFR50.55(e) .

A field inspection program was conducted using both visual and nonMestructive examination methods. After completion of the field inspections, a finite element analysis was performed for the coped beams which had radii less than the specified I5 inch minimum. Fracture mechanics analysis was performed to evaluate the significance of the kerfs and .other cope related discontinuities.

'4 Based on the results of the evaluation program we have concluded that the conditions noted are nonconforming conditions whi.ch are technically acceptable and will have no adverse effect on the safe operation of the plant and, therefore, have been determined to be not reportable. All nonconformance have been identified and are being controlled in accordance with Bechtel Quality Control procedures and will be dispositioned accordingly.

However, to preclude recurrence of similar nonconformances, the pertinent Bechtel Quality Surveillance Plan procedures have been revised to repxire Bechtel inspection personnel to examine structural members to assure that improperly coped beams are not permitted to be shipped.

Very truly yours, W. Curtis Vice President-Engineering a Construction-Nuclear PENNSYLVANIA POWER & LI G H T COMPANY

~I July 14, 1980 FLW/ARS:jmk cc: Mr. Victor Stello (15)

Director&ffice of Inspection 6 Enforcement U. S. Nuclear Regulatory Commission Washingotn, D.C. 20555 Mr. G. McDonald, Director Office of Management Information & Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Robert M. Gallo U. S. Nuclear Regulatory Commission P.O. Box 52 Shickshinny, PA 18655