DCL-04-165, Special Report 04-02: Steam Generator Tube Plugging During Unit 2 Twelfth Refueling Outage

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Special Report 04-02: Steam Generator Tube Plugging During Unit 2 Twelfth Refueling Outage
ML043430465
Person / Time
Site: Diablo Canyon 
(DPR-082)
Issue date: 11/30/2004
From: Becker J
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-04-165
Download: ML043430465 (2)
v • d • e


Text

Pacefic Gas and Electric Company James R. Becker Vice President-Diablo Canyon Operations and Station Director Diablo Canyon Power Plant P0. Box 56 Avila Beach, CA 93424 November 30, 2004 805.545.3462 Fax: 805.545.4234 PG&E Letter DCL-04-165 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-323, OL-DPR-82 Diablo Canyon Power Plant Unit 2 Special Report 04-02: Steam Generator Tube Plugginq During Unit 2 Twelfth Refueling Outage

Dear Commissioners and Staff:

In accordance with Technical Specification (TS) 5.6.1Oa, this special report provides the number of steam generator (SG) tubes plugged during the Unit 2 twelfth refueling outage (2R1 2) completed during November 2004. A total of 51 tubes were plugged.

Based on the 2R12 SG tube inspection results, all SGs were defined as TS 5.5.9 Category C-2.

SG Tubes Plugged Total SG Tubes Plugged Percent of Total Tubes during 2R12 to Date Plugged 2-1 10 119 3.5%

2-2 19 245 7.2%

2-3 5

124 3.7%

2-4 17 332 9.8%

Total 51 820 6.05%

If there are any questions regarding this special report, contact John Arhar at (805) 545-4629.

Sincerely, James R. Becker Au(

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Carlaway

  • Comanche Peak
  • Diablo Canyon
  • Palo Verde
  • Wolf Creek

Document Control Desk November 30, 2004 Page 2 PG&E Letter DCL-04-165 cc:

Bruce S. Mallett David L. Prouix Girija S. Shukla State of California, Pressure Vessel Unit Diablo Distribution A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Catlaway

  • Comanche Peak
  • Diablo Canyon
  • Palo Verde
  • Wolf Creek
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