ML20059N751
| ML20059N751 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 10/11/1990 |
| From: | Noonan T DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| ND3MNO:3045, NUDOCS 9010170237 | |
| Download: ML20059N751 (4) | |
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yh hfg, "lsyt2C DuquesneL@t g o;oup Stuptungport. PA 15077-0004 October 11, 1990 ND3MNO:3045 Beaver Valley Power Station, Unit No. 2 o
Docket No. 50-412, License No..NPF-73 Special Report United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
In accordance with Appendix A, Beever Valley Unit #2 Technical Specification 3/4.4.5, " Steam Generators," Surveillance Requirement 4.4.5.5.a, the following Special Report is submitted.
This report documents the-results of the Inservice Inspection of the steam generator tubes, performed during the Second Refueling Outage.
On September 30,
- 1990, the inservice inspection of twenty percent of the tubes' in steam generators 2RCS-SG21B (S/G B) and 2RCS-SG21C (S/G C) was completed.
The inspection results identified no indications of tube wall degradation of forty (40) percent or greater.
Two (2) tubes were plugged (leak limiting plugs in the cold leg) as n result of an analysis conducted to determine which tubes could be susceptible to
, vibration induced fatigue.
The tubes were located i'a Row 9, Column 84 in each steam generator (S/G B and C).
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October 11, 1990 ND3MNO:3045
- Page 2 Additionally, plug retainers were installed in nine Westinghouse ribbed plugs on the outlet side (plug retainers had been installed on the inlet plugs during the first refueling).
Three inlet side Babcock & Wilcox rolled plugs were replaced with plugs of Inconel 690.
Very truly yours.
T. P.
foonan General Manager Nuclear Operations JGT/sl Attachment
Octob;r 11, 1990 ND3MNO:3045 Page 3 cc: Mr. T. T. Martin, Regional Administrator United States Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia, PA 19406 C. A. Roteck, Ohio Edison 76 S. Main Street Akron, OH 44308 Mr. A.
DeAgazio, BVPS Licensing Project Manager United States Nuclear Regulatory Commissicn Washington, DC 20555 J.
Beall, Nuclear Regulatory Commission BVPS Senior Resident Inspector Larry Beck Cleveland Electric 6200 Oak Tree Blvd.
Independence, Ohio 44101 INPO Records Center Suite 1500 1100 Circle 75 Parkway Atlanta, GA 30339 G.
E. Muckle Factory Mutual Engineering 680 Anderson Drive #BLD10 Pittsburgh, PA 15220-2773 Mr. J.
N. Steinmetz, Operating Plant Projects Manager Mid Atlantic Area Westinghouse Electric Corporation Energy Systems Service Division Box 355 Pittsburgh, PA 15230 American Nuclear Insurers c/o Dottie Sherman, ANI Library The Exchange Suite 245 270 Farmington Avenue Farmington, CT 06032 Mr. Richard Janati Department of Environmental Resources P. O.
Box 2063 16th Floor, Fulton Building Harrisburg, PA 17120 l
Director, Safety Evaluation & Control Virginia Electric & Power Co.
P. O.
Box 26666 One James River Plaza Richmond, VA 23261
Oct ber-11,_1990
'. ND3MNO 3045-
' Page.4
. cc: W.~Hartley Management Analysis Company 112671 High Bluff Drive n:
San Diego, CA 92130-2025 J. M.. Riddle NUS Operating Service Corporation Park West II Cliff Mine Road Pittsburgh, PA 15275 l.
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