ML13226A494
| ML13226A494 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 06/30/2012 |
| From: | Bryan Hanson Battelle Memorial Institute, Pacific Northwest National Laboratory, Office of Nuclear Regulatory Research |
| To: | |
| References | |
| FOIA/PA-2013-0139, Job Code N6783 | |
| Download: ML13226A494 (5) | |
Text
JCN-N6783 Office of Nuclear Regulatory Research Properties of CRDM Welds Brady Hanson (509) 375-5051 Period of Performance: May 3, 2010-July 31. 2012 Reporting Period: June 2012 OBJECTIVE The objective of this project Is to conduct nondestructive ultrasonic testing (UT), and an assessment of the leak path on Nozzle 83 from the North Anna Unit-2 reactor pressure vessel head. The assessment of the leak path will be conducted using instrumentation equivalent to or better than that used by industry. The results of the nondestructive examination will be compared to a previous assessment. A destructive analysis will be conducted to allow a visual assessment of the leak path. To the extent possible, the destructive analysis will be conducted such that materials from the nozzle and the J-groove weld that will be retained for later testing.
TECHNICAL PROGRESS Task 1: Decontaminate the Nozzle and Prepare Laboratory for NDE Task 1 is complete.
Task 2: Perform Ultrasonic Measurements of the Leakaae Path Task 2 Is complete.
Task 3: Perform Destructive Evaluation of Leakage Path Task 3 is complete.
Task 4: Write NUREG/CR PNNL addressed the NRC comments on the draft report and submitted the revised version to NRC on June 19. NRC management performed their review and approved the NUREG/CR with minor changes and sent those changes to PNNL on June 29.
Task 5: Waste DisoAsal and Cleanuo Task 5 is complete.
Task 6: Pro~ect Management and Meetings A telecom was held with NRC to discuss the review comments on the draft NUREc3/CR.
j"5L~
JCN-N§783 MEETINGS AND TRIPS None.
PROBLEM AREAS None.
SCHEDULE OF MILESTONES AND DELIVERABLES Submit final NUREG/CR report by July 30, 2012 Project closeout July 31, 2012 PLANS FOR THE NEXT REPORTING PERIOD Task 1: Decontaminate the Nozzle and Prepare Laboratory for NDE Complete.
Task 2: Perform Ultrasonic Measurements of the Leakaae Path Complete.
Task 3: Perform Destructive Evaluation of Leakage Path Nozzle 63 Ootlonal Work Complete.
Task 4: Write NUREG/CR The NUREGICR final version will be prepared and made "camera ready' and issued to NRC after undergoing an Internal PNNL review and receiving the PNNL publication number.
Task 5: Waste Dismosal and Cleanup Complete.
TasK 6: Prolect Management and Meetlnas Project records will be sent to the PNNL records center for storage and the project will be closed out by the end of July.
2
JCN-NO783 VARIANCE EXPLANATION None EQUIPMENT None.
QUALITY ASSURANCE The Quality Assurance requirements for this project are provided In the Laboratory's Standards Based Management System (SBMS). The SBMS allows for a graded QA approach to meet the requirements of Individual projects. No specific Quality Assurance requirements have been specified by the NRC for this project.
3
(b)(4)
(b)(4)