2CAN040501, Unit 2, Steam Generator Plugged Tube Report

Unit 2, Steam Generator Plugged Tube Report

ML051090243
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/11/2005
From:	James D Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
2CAN040501
Download: ML051090243 (4)

Text

Entergy Operations, Inc.

Entergy 1448 S R. 333 Russeliville, AR 72802 Tel 501 858 5000 2CAN040501 April 11, 2005 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

Subject:

Steam Generator Plugged Tube Report Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6

Dear Sir or Madam:

Inservice inspections of Arkansas Nuclear One - Unit 2 (ANO-2) Steam Generator (SG) tubes were performed during refueling outage 2R17. Based on the results of the inspections, which were completed on March 27, 2005, a total of 11 tubes were plugged; 4 tubes in SG-A and 7 tubes in SG-B. The attached report provides additional detail regarding the individual tubes that were affected. This report is submitted in accordance with ANO-2 Technical Specification 6.6.7.a.

This correspondence contains no new commitments.

Sincerely,

. James Acti Director, Nuclear Safety Assurance Attachment r4 9

4.

2CAN040501 Page 2 cc: Dr. Bruce S. Mallett Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. Drew Holland Mail Stop 0-7 D1 Washington, DC 20555-0001

Attachment 2CAN040501 Arkansas Nuclear One - Unit 2 Steam Generator Plugged Tube Report

Attachment to 2CAN040501 Page I of 1 Arkansas Nuclear One Unit Two 2R17 15 Day Pluaged Tube Report Arkansas Nuclear One - Unit Two performed the 2R17 Inservice Inspection of the Steam Generator tubes starting on March 11, 2005. A total of 11 tubes were plugged based on the inspection results; 4 tubes in Steam Generator A and 7 tubes in Steam Generator B.

Table 1 provides the individual tubes and locations of flaws in Steam Generator A and Table 2 provides the individual tubes and locations of flaws in Steam Generator B. The following are the acronyms for the tables:

SVI Single Volumetric Indication PLP Potential Loose Part Table I Steam Generator A Plugged Tubes ROW LINE IND LOCATION 1 70 169 SVI TSH + 0.25 2 72 169 SVI TSH + 0.87 3 71 170 SVI TSH + 0.92 4 135 78 SVI TSC + 0.04 Table 2 Steam Generator B Plugged Tubes ROW LINE IND LOCATION 1 6 97 PLP TSC + 0.19 2 5 98 PLP TSC + 0.13 3 7 98 PLP TSC + 0.15 4 20 173 PLP TSH + 0.11 5 21 172 PLP TSH + 0.13 6 22 173 PLP TSH + 0.09 7 139 120 SVI TSH + 0.10