L-03-157, R10 Steam Generator Tube Plug Special Report

R10 Steam Generator Tube Plug Special Report

ML032880405
Person / Time
Site:	Beaver Valley
Issue date:	10/09/2003
From:	Pearce L FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-03-157
Download: ML032880405 (2)

Text

FENOC "*-%

Beaver Valley Power Station Route 168 Box 4 P~~~~~~~~~~~~~~~~

ffibng Nuclear Oprating C7pany Shippingport, PA 5077-0004 L William Pearce 724-682-5234 Site Vice President Fax: 724-643-8069 October 9, 2003 L-03-157 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001

Subject:

Beaver Valley Power Station, Unit No. 2 Docket No. 50-412, License No. NPF-73 2R10 Steam Generator Tube Plug Special Report In accordance with Beaver Valley Power Station (BVPS) Unit No. 2 Technical Specification 4.4.5.5.a which requires that a Steam Generator Special Report be submitted within 15 days of completion of steam generator inspections, Attachment 1 lists the number of tubes removed from service (plugged) from each steam generator during the 2R10 refueling outage. No steam generator tubes were repaired (sleeved) during 2R10.

The complete and detailed results of the 2R10 steam generator tube inspections will be submitted within the next 12 months in accordance with BVPS No. 2 Technical Specification 4.4.5.5.b.

No new commitments are contained in this submittal. If there are any questions concerning this matter, please contact Mr. Larry R. Freeland, Manager, Regulatory Affairs/Performance Improvement at 724-682-5284.

Sin y

. William Pearce Attachment c: Mr. T. G. Colburn, NRR Senior Project Manager Mr. P. C. Cataldo, NRC Sr. Resident Inspector Mr. H. J. Miller, NRC Region I Administrator

ATTACHMENT 1 TO L-03-157 I I 2RCS- 2RCS- 2RCS-SG21A SG21B SG21C Number of tubes removed from service prior to 2R10 124 113 102 Number of tubes removed from service during 2R10 13 13 20 Axial Indications Above the Hot Leg Top-of-Tubesheet 2 1 4 Circumferential Indications Above the Hot Leg Tubesheet 2 1 Circumferential Indications Within the Hot Leg Tubesheet 7 5 Non Quantifiable Indication Above Top-of-Tubesheet 1 Volumetric Indication Above Cold Leg Top-of-Tubesheet 1 Volumetric Indications at Tube Support Plates 2 1 Free-Span Volumetric Indication 1 Confrmed Tube Support Plate Distorted Signals 3 Bad Data (Row 2 U-Bends) 4 Possible Loose Part Signals (TSC + 16.5") 2 Obstructed Tube 1 Permeability Variation 1 1 1 Preventatively Plugged (Power Uprate) 2 3 Number of tubes removed from service after 2R10 137 126 122