ML13226A498
| ML13226A498 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 07/31/2012 |
| 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: ML13226A498 (5) | |
Text
JCN-N0783 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. July 2012 OBJECTIVE The objective of this project is to conduct nondestructive ultrasonic testing (UT), and an assessment of the leak path on Nozzle 63 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 Leakage Path Task 2 is complete.
Task 3: Perform Destructive Evaluation of Leakage Path Task 3 is complete.
Task 4: Write NUREG/IR Final comments from NRC were received and addressed. The NUREG/CR was approved by NRC management and PNNL Internal reviewers. The final, camera ready document was sent to NRC on July 19 as NUREG/CR-7142 and PNNL-21547. This activity is now complete.
Task 5: Waste Disposal and Cleanup Task 5 is complete.
Task 6: Prolect Manapement and Meetings All project records have been transferred to the PNNL records center. The project is being closed out by the end of July. Per an email from Greg Oberson, a camera, the scanner, and the 1
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JCN-N0783 probe will be transferred from NRC to DOE Accountable property so that PNNL can retain the equipment and use for future projects as opposed to having to dispose of them. This activity is now complete.
MEETINGS AND TRIPS None.
PROBLEM AREAS None.
SCHEDULE OF MILESTONES AND DELIVERABLES Submit final NUREGtCR report July 20, 2012 Project closeout July 31, 2012 PLANS FOR THE NEXT REPORTING PERIOD Task 1: Decontaminate the Nozzle and Preopare Laboratory for NDE Complete.
Task 2: Perform Ultrasonic Measurements of the Leakaue Path Complete.
Task 3: Perform Destructive Evaluation of Leakage Path Nozzle 63 Optional Work Complete.
Task 4: Write NUREG/CR Complete.
Task 5: Waste Disposal and Cleanuo Complete.
Task 6: Prolect Management and Meetinas Complete.
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JCN-N6783 VARIANCE EXPLANATION None EQUIPMENT The camera, scanner, and probe are to be transferred from NRC property to DOE Accountable property so that they do not need to be disposed of.
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.
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