ML032330476
| ML032330476 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/21/2003 |
| From: | Thadani M NRC/NRR/DLPM/LPD4 |
| To: | |
| Thadani M, NRR/DLPM, 415-1476 | |
| References | |
| TAC MB8435 | |
| Download: ML032330476 (9) | |
Text
August 21, 2003 LICENSEE:
STP Nuclear Operating Company FACILITY:
South Texas Project, Unit 1
SUBJECT:
SUMMARY
OF HEADQUARTERS, REGION IV, AND STP NUCLEAR OPERATING COMPANY TELEPHONE CONFERENCE ON JUNE 19, 2003, REGARDING SOUTH TEXAS PROJECT, UNIT 1, BOTTOM-MOUNTED INSTRUMENTATION PENETRATION LEAKAGE ISSUE; STATUS OF ACTIVITIES (TAC NO. MB8435)
On June 19, 2003, the U. S. Nuclear Regulatory Commission (NRC) Headquarters and Region IV staff held a telephone conference with STP Nuclear Operating Company (STPNOC), the licensee for South Texas Project, Unit 1. The conference call was a continuation of the ongoing discussions and was a followup of the licensees activities following the discovery of an apparent leakage at the interface of reactor vessel bottom-mounted instrumentation (BMI) penetrations 1 and 46. Enclosure 1 is a list of participants. Enclosure 2 is the telephone conference agenda.
At this phone call, the licensee went through the status of ongoing activities in the areas of the non-destructive examination (NDE) campaign, nozzle repair, and the NRC staff visit to the Framatome facility in Lynchburg, Virginia, to observe the licensees methodology for stress analyses. The licensee stated that the entire core has been offloaded.
NDE Activities STPNOC stated that, for the time being, it has wrapped up its NDE program. After the boat samples are removed, the licensee will do the undervessel wastage examination. The following actions have been completed:
Profilometry was done on penetrations 1 and 46 to see what distortions are caused by J-groove welding. Penetration 46 showed some expected distortion.
The licensee was looking for a demonstration of gross wastage by Boroscopic examination following removal of the bottom portion of the nozzles for penetrations 1 and 46. It did not find any gross wastage indication.
The licensee has determined the boat samples they are going to take. In Nozzle 46, the licensee will go after the crack indication that does not break the tube wall surface.
Nozzle Repairs
The temper bead pad has been welded on penetrations 1 and 46.
The guide tubes will be reinstalled in penetrations 1 and 46.
The shavings material discovered in the penetrations is Alloy 600. The licensee could not confirm the source of the shaving material.
The licensee will clean out the debris by removing the guide tubes for the penetrations.
The licensee stated that the NRC staff visited the Framatome facilities in Lynchburg, Virginia, to observe the methodologies for extensive stress analyses performed by the licensee contractors.
The licensee stated that the boat sample analyses are expected to be completed by September 15, 2003. STPNOC will keep the NRC staff informed of the progress made.
/RA/
Mohan C. Thadani, Senior Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-498
Enclosures:
As stated cc w/enclosures: See next page
- via e-mail NRR-106 OFFICE PDIV-1/PM PDIV-1/LA RIV PDIV-1/SC NAME MThadani:sab MMcAllister WJohnson*
RGramm DATE 8/20/03 8/20/03 8/21/03 8/20/03 LIST OF PARTICIPANTS June 19, 2003 Licensees Participants Ed Halpin Plant Manager Dan Rencurrel Manager, Plant Operations Scott Head Manager, Licensing Chet McIntyre BMI Engineering Alex Kent Manager, Testing/Programs Harry Murray BMI Project Manager Paul Serra Manager, Plant Protection Allen Mikus Public Information NRC Participants Headquarters Region IV Jack Foster Art Howell Robert Gramm Dwight Chamberlain Mohan Thadani Troy Pruett William Cullen Tom Farnholtz Mark Hartzman Mike Runyan William Reckley Victor Dricks Matthew Mitchell TELEPHONE CONFERENCE AGENDA June 19, 2003 1.
Desired outcomes & agenda Head 2.
Overall status of Unit 1 Rencurrel 3.
Overview of results of NDE since last week McIntyre 4.
Boat Samples McIntyre 5.
Status of repair activities Murray 6.
Status of licensing activities Head 7.
Schedule for next call Head
South Texas Project, Unit 1 cc:
Mr. Cornelius F. OKeefe Senior Resident Inspector U. S. Nuclear Regulatory Commission P. O. Box 910 Bay City, TX 77414 A. Ramirez/C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 Mr. L. K. Blaylock Mr. W. C. Gunst City Public Service Board P. O. Box 1771 San Antonio, TX 78296 Mr. C. A. Johnson/A. C. Bakken AEP Texas Central Company P. O. Box 289 Mail Code: N5022 Wadsworth, TX 77483 INPO Records Center 700 Galleria Parkway Atlanta, GA 30339-3064 Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 D. G. Tees/R. L. Balcom Texas Genco, LP P. O. Box 1700 Houston, TX 77251 Judge, Matagorda County Matagorda County Courthouse 1700 Seventh Street Bay City, TX 77414 A. H. Gutterman, Esq.
Morgan, Lewis & Bockius 1111 Pennsylvania Avenue, NW Washington, DC 20004 Mr. T. J. Jordan, Vice President Engineering & Technical Services STP Nuclear Operating Company P. O. Box 289 Wadsworth, TX 77483 S. M. Head, Manager, Licensing Nuclear Quality & Licensing Department STP Nuclear Operating Company P. O. Box 289, Mail Code: N5014 Wadsworth, TX 77483 Environmental and Natural Resources Policy Director P. O. Box 12428 Austin, TX 78711-3189 Jon C. Wood Matthews & Branscomb 112 East Pecan, Suite 1100 San Antonio, TX 78205 Arthur C. Tate, Director Division of Compliance & Inspection Bureau of Radiation Control Texas Department of Health 1100 West 49th Street Austin, TX 78756 Brian Almon Public Utility Commission William B. Travis Building P. O. Box 13326 1701 North Congress Avenue Austin, TX 78701-3326
South Texas Project, Unit 1 cc:
Susan M. Jablonski Office of Permitting, Remediation and Registration Texas Commission on Environmental Quality MC-122 P.O. Box 13087 Austin, TX 78711-3087 Mr. Terry Parks, Chief Inspector Texas Department of Licensing and Regulation Boiler Division P. O. Box 12157 Austin, TX 78711 Mr. Ted Enos 4200 South Hulen Suite 630 Ft. Worth, Texas 76109 Mr. James J. Sheppard President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth, TX 77483