ML033640201
| ML033640201 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 12/27/2003 |
| From: | Parkey G South Texas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NOC-AE-03001658, STI: 31683107 | |
| Download: ML033640201 (12) | |
Text
3001658(Supplement to SDG-22 92 day EAOT)
STI: 31683107 December 27, 2003 NOC-AE-03001658 10CFR50.90 U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Unit 2 Docket No. STN 50-499 Supplement 1 to Proposed Emergency Change to Technical Specification 3.8.1.1 Note 12
Reference:
- 1. Letter from G. L. Parkey to NRC Document Control Desk dated December 27, 2003, Proposed Emergency Change to Technical Specification 3.8.1.1 Note 12 (NOC-AE-03001657)
In the referenced letter, STP Nuclear Operating Company (STPNOC) submitted a proposed emergency amendment to the STP Unit 2 Operating License NPF-80. The proposed changes to the Technical Specifications (TS) revised TS 3.8.1, AC Sources - Operating, extending the allowed outage time (AOT) for Unit 2 Standby Diesel Generator (SDG) 22 from 21 days to 113 days.
This letter responds to a request for additional information regarding the Non-Destructive Examination (NDE) technique, Manual Phased Array Examination, used on both Unit 1 and Unit 2 SDGs connecting rod assemblies. Attachment 1 provides close-up photos of the calibration standard used for this NDE process.
If there are any questions regarding this response, please contact Mr. Michael Lashley at (361) 972-7523.
NOC-AE-03001658 Page 3 cc:
(paper copy)
(electronic copy)
Bruce S. Mallett Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP L. D. Blaylock City Public Service U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 David H. Jaffe U. S. Nuclear Regulatory Commission R. L. Balcom Texas Genco, LP Richard A. Ratliff Bureau of Radiation Control Texas Department of Health 1100 West 49th Street Austin, TX 78756-3189 A. Ramirez City of Austin C. A. Johnson AEP Texas Central Company Jeffrey Cruz U. S. Nuclear Regulatory Commission P. O. Box 289, Mail Code: MN116 Wadsworth, TX 77483 Jon C. Wood Matthews & Branscomb C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704
NOC-AE-03001658 Page 1 of 9 ATTACHMENT 1 Manual Phased Array Examination Photos
NOC-AE-03001658 Page 2 of 9 Fig 1. Overview of calibration standard cut from #8
NOC-AE-03001658 Page 3 of 9 Fig 2. Close-up of calibration standard EDM notch
NOC-AE-03001658 Page 4 of 9 Fig 3. Calibration standard showing scanning surface of transducer
NOC-AE-03001658 Page 5 of 9 Fig 4. Side-view of calibration standard showing transducer
NOC-AE-03001658 Page 6 of 9 Fig 5. Side-view showing location of EDM notch
NOC-AE-03001658 Page 7 of 9 Fig 6. Close-up of side-view showing minimum master rod ligament and location of EDM notch (yellow line is just to show orientation and not depth)
NOC-AE-03001658 Page 8 of 9 Fig 7. Close-up of side-view showing approximate location of crack on
- 9 (black line) and location of EDM notch (yellow line)
NOC-AE-03001658 Page 9 of 9 Fig 8. Field inspection