ENS Event | |
|---|---|
05:00 Apr 18, 2006 | |
| Title | Part 21 Notification - Ndt Equipment Failure |
| Event Description | The State provided the following information via facsimile:
Per the requirements of 10 CFR Part 21 this letter has been written to inform you of a reportable condition in regards to a Crankout Assembly Failure Reported by Team Industrial Services on April 18, 2006, Event# 42508, and on May 08, 2006, Event# 42561. On May 8, 2006, NDT Repair Service was notified, by Team Industrial Services, of an equipment failure during radiographic operations using one of our Control Assemblies (PN# RT1117 25ft Control Assembly For Use with AEA-QSA 6608 Exposure Device). It was noted to us that the Control Assembly could be connected to the exposure device without connecting the drive cable to the source assembly. The Exposure Device could then be put into the operation mode and the source could then be cranked out therefore causing a misconnect; which violates the ANSI N432-1981, Section 6.1.4, as required by 10 CFR Part 34. NDT Repair Service immediately halted distribution of Control Assemblies for the AEA-QSA 6608 Exposure Device pending investigation of the probable cause of the failure. After further investigating into the cause of the failure it was found, that, the basic component that caused the failure was the Control Adapter, which is part of the Control Assembly that connects to the Exposure Device. Through further internal investigation, NDT Repair Service was able to limit the potential problem to 1 lot of 25 Control Adapters that we took delivery of on November 13, 2003 and it was noted that 9 of the 25 adapters were out of tolerance and needed rework. The Root Cause of the defect in the control adapter was found to be that back stops for the drive cables were drilled too deep allowing the adapter to hook up to the exposure device without connecting to the source assembly, therefore allowing the source to be cranked out and causing a misconnect. |
| Where | |
|---|---|
| Ndt Repair Service, Inc. Morgan City, Louisiana (NRC Region 4) | |
| License number: | LA-6631-L01 |
| Organization: | Ndt Repair Service, Inc. |
| Reporting | |
| 10 CFR 21.21 | |
| Time - Person (Reporting Time:+827.53 h34.48 days <br />4.926 weeks <br />1.134 months <br />) | |
| Opened: | Brian Bellard, Sr 16:32 May 22, 2006 |
| NRC Officer: | John Knoke |
| Last Updated: | May 22, 2006 |
| 42596 - NRC Website | |
Ndt Repair Service, Inc. with 10 CFR 21.21 | |
WEEKMONTHYEARENS 425962006-04-18T05:00:00018 April 2006 05:00:00
[Table view]10 CFR 21.21 Part 21 Notification - Ndt Equipment Failure 2006-04-18T05:00:00 | |