ML030830576
| ML030830576 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/24/2003 |
| From: | Shukla G NRC/NRR/DLPM/LPD4 |
| To: | |
| Shukla G, NRR/DLPM/LPDIV-2/415-8439 | |
| Shared Package | |
| ml | List: |
| References | |
| Download: ML030830576 (5) | |
Text
March 24, 2003 LICENSEE:
Pacific Gas and Electric Company FACILITY:
Diablo Canyon Nuclear Power Plant, Unit 2
SUBJECT:
SUMMARY
OF MARCH 4, 2003, MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY (PG&E) ON RESOLUTION OF STEAM GENERATOR ISSUES FROM THE CURRENT DIABLO CANYON POWER PLANT UNIT 2 REFUELING OUTAGE 2R11 On March 4, 2003, the NRC staff met with Pacific Gas and Electric Company to discuss their proposed resolution of steam generator issues from the current refueling outage 2R11 for the Diablo Canyon Power Plant (DCPP), Unit 2.
In the meeting the following DCPP Unit 2 steam generator issues were discussed:
steam generator inspection scope and results,
outside diameter stress corrosion cracking voltage growth,
review Generic Letter 95-05, "Voltage-Based Repair Criteria for Westinghouse Steam Generator Tubes Affected by Outside Diameter Stress Corrosion Cracking," alternate repair criteria requirements,
as found vs. predicted results,
crack growth and voltage dependent growth concepts,
probability of detection (POD) for tube R44C45-2H flaw,
startup calculations and assumptions and root cause analysis,
locked tube support plate (TSP) update,
U-bend indications and locations,
visual inspection results, and
in-situ leak and pressure test results.
Also, PG&E discussed the effects of the Unit 2 steam generator inspection results on Unit 1 operability.
PG&E also provided copies of an emergency amendment for Unit 2 for NRC approval for a POD of 1.0 to one bobbin indication, contained in the DCPP Unit 2 steam generator 4 tube, at row 44, column 45, at the second tube support plate on the hot leg side for the beginning of cycle voltage distribution for the DCPP Unit 2 Cycle 12 operational assessment. [Based on a later staff review of the amendment request, it was concluded that the proposed amendment is not needed prior to restart, and thus, it will be processed as a normal amendment request.]
At the conclusion of the meeting, the staff expressed their appreciation to PG&E for the presentation.
An attendance list is provided in the attachment. The slides used during the meeting are available in ADAMS under accession number ML030640753.
/RA/
Girija S. Shukla, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-323
Enclosure:
Meeting Attendees cc w/encl: See next page
ML030830576 NRC-001 OFFICE PDIV-2/PM PDIV-2/LA PDIV-2/SC NAME GShukla EPeyton SDembek DATE 3/14/03 3/14/03 3/24/03 DOCUMENT NAME: C:\\ORPCheckout\\FileNET\\ML030830576.wpd
ATTENDANCE LIST MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY (PG&E)
ON RESOLUTION OF DIABLO CANYON UNIT 2 STEAM GENERATOR ISSUES MARCH 4, 2003 PG&E L. Womack J. Tomkins P. Nugent S. Ketelsen R. Exner D. Beals A. Afzali WESTINGHOUSE R. Keating T. Pitterle FRAMATOME J. Begley J. Fleck D. Cisco NEI J. Riley R. Luckett NRC G. Shukla D. Chamberlain (R-IV)
H. Berkow C. Marschall (R-IV)
J. Donohew S. Long B. Bateman J. Davis L. Lund M. Murphy E. Murphy S. Burnell (OPA)
C. Khan A. Hodgdon (OGC)
K. Karwoski B. Weisman (OGC)
PUBLIC Dan Sulter (NGP)
Diablo Canyon Power Plant, Units 1 and 2 cc:
NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P.O. Box 369 Avila Beach, CA 93424 Dr. Richard Ferguson, Energy Chair Sierra Club California 1100 11th Street, Suite 311 Sacramento, CA 95814 Ms. Nancy Culver San Luis Obispo Mothers for Peace P.O. Box 164 Pismo Beach, CA 93448 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, CA 93408 Mr. Truman Burns Mr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Room 4102 San Francisco, CA 94102 Diablo Canyon Independent Safety Committee ATTN: Robert R. Wellington, Esq.
Legal Counsel 857 Cass Street, Suite D Monterey, CA 93940 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 Christopher J. Warner, Esq.
Pacific Gas & Electric Company P.O. Box 7442 San Francisco, CA 94120 Mr. David H. Oatley, Vice President and General Manager Diablo Canyon Nuclear Power Plant P.O. Box 56 Avila Beach, CA 93424 City Editor The Tribune 3825 South Higuera Street P.O. Box 112 San Luis Obispo, CA 93406-0112 Mr. Ed Bailey, Radiation Program Director Radiologic Health Branch State Department of Health Services P.O. Box 942732 (MS 178)
Sacramento, CA 94234-7320 Mr. James D. Boyd, Commissioner California Energy Commission 1516 Ninth Street (MS 31)
Sacramento, CA 95814 Mr. James R. Becker, Vice President Diablo Canyon Operations and Station Director Diablo Canyon Nuclear Power Plant P.O. Box 3 Avila Beach, CA 93424 Mr. Gregory M. Rueger Senior Vice President, Generation and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant P.O. Box 3 Avila Beach, CA 93424