ML091470152
| ML091470152 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 05/15/2009 |
| From: | Bethay S Entergy Nuclear Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 2.09.038, RPV-N9A-1, TAC ME1151 | |
| Download: ML091470152 (3) | |
Text
Entergy Entergy Nuclear Operations, Inc.
Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360 Stephen J. Bethay Director, Nuclear Assessment May 15, 2009 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001
SUBJECT:
Entergy Nuclear Operations, Inc.
Pilgrim Nuclear Power Station Docket No. 50-293 License No. DPR-35 Results of UT Examination of Jet Pump Instrumentation Nozzle RPV-N9A-1 Weld Overlay (TAC NO. ME1 151)
- 1.
Entergy Letter, 2.09.037, Pilgrim Relief Request (PRR)-19, Jet Pump Instrumentation Nozzle Weld, RPV-N9A-1 Repair Plan, dated May 7, 2009
REFERENCE:
LETTER NUMBER:
2.09.038
Dear Sir or Madam,
The attachment to this letter provides results of the Ultrasonic Testing (UT) examination of the weld overlay completed on the Jet Pump Instrumentation (JPI) Nozzle Safe-End weld, RPV-N9A-1, as specified in Reference 1, Enclosure 2. The weld overlay was completed during Refueling Outage 17.
The UT examination was conducted using the Performance Demonstration Initiative (PDI) methodology in accordance with the requirements of ASME Section XI, Appendix VIII, Supplement 11 as endorsed by 10 CFR 50.55a and addressed in Pilgrim Relief Request PRR-9, which was approved by the NRC in a Safety Evaluation Report, dated March 22, 2006.
The results of the UT examination of the weld overlay were acceptable relative to the requirements of 1998 ASME Code with 2000 Addenda, Section Xl, Appendix VIII, Supplement 11, modified by the PDI methodology.
NXc
Entergy Nuclear Operations, Inc.
Pilgrim Nuclear Power Station Letter Number: 2.09.038 Page 2 There are no commitments made in this submittal.
If you have any questions, please call Mr. Joseph Lynch, Pilgrim Licensing Manager at 508-830-8403.
Sincerely, Stephen J. Bethay
~?U r
Stephen J. Bethay Director, Nuclear Safety Assurance SJB/wgl
Attachment:
Results of UT Examination of Jet Pump Instrumentation Nozzle, RPV-N9A-1, Weld Overlay (1 page) cc:
Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission 475 Allendale Road Ki~ng of Prussia, PA 19406 Senior Resident Inspector Pilgrim Nuclear Power Station Mr. James S. Kim, Project Manager Plant Licensing Branch 1-1 Division of Operator Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission One White Flint North 0-8C2 11555 Rockville Pike Rockville, MD 20852
ATTACHMENT To Entergy Letter No. 2.09.038 Results of UT Examination of Jet Pump Instrumentation Nozzle RPV-N9A-1 Weld Overlay Regulatory Commitments UT Examination results of Jet Pump Made in Entergy Letter 2.09.037, Enclosure 2 Instrumentation Nozzle, RPV-N9A-1, Weld Overlay Weld overlay examination. results including a listing No indications were detected or observed. The of indications detected.
achieved coverage included 100% of the PSI Overlay and greater than 98% of the base material for the welds.
Disposition of indications using the standards of No indications required disposition as a result of ASME Section XI, Subsection IWB-3514-2 and/or the inspection. The Weld Overlay was accepted in IWB-3514-3 criteria and, if possible, the type and accordance with the requirements of ASME nature of the indicationsSection XI, Appendix VIII, Supplement 11 requirements, as modified by Pilgrim Relief Request PRR-9 for the PDI Methodology.
A discussion of any repairs to the weld overlay No repairs to the weld overlay material were made.
material and/or base metal and the reason for the repairs.