ENS Event | |
|---|---|
10:30 Jan 31, 2010 | |
| Title | Radiography Source Failed to Fully Retract Into Camera |
| Event Description | On January 31st, two different radiography crews working the Kuparuk Oil Field on the North Slope of Alaska experienced a malfunctioning locking system on the same INC IR-100 exposure device (serial number 6621).
During the night shift, the locking mechanism tripped prematurely [approximately 1/4 inch before the retracted lock position]. A survey of the exposure device did not reveal any abnormal readings. When the crank assembly was disconnected, it was noted that the pigtail was not in the proper position. A trained technician removed the locking assembly and cleaned dirt and ice from the assembly. The exposure device was reassembled with the source in the safe and secure position. The day shift utilized the same device and experienced the same situation. When the lock was removed to be cleaned, there was a build up of ice in the locking assembly. The exposure device was reassembled with the source in the safe and secure position. Exposure Device: Industrial Nuclear IR-100; Device S/N: 6621; Source S/N: O835; Source Activity: 85 curies; Source Type: Ir-192. The weather was minus 15 degrees with a wind speed of 18 knots. There was no exposure to the crew or the General Public during this incident. |
| Where | |
|---|---|
| Kakivik Asset Management Kuparuk Oil Field, Alaska (NRC Region 4) | |
| License number: | 50-27667-01 |
| Organization: | Kakivik Asset Management |
| Reporting | |
| 10 CFR 30.50(a) | |
| Time - Person (Reporting Time:+26.62 h1.109 days <br />0.158 weeks <br />0.0365 months <br />) | |
| Opened: | Keenan Remele 13:07 Feb 1, 2010 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Feb 1, 2010 |
| 45669 - NRC Website | |
Kakivik Asset Management with 10 CFR 30.50(a) | |
WEEKMONTHYEARENS 456692010-01-31T10:30:00031 January 2010 10:30:00
[Table view]10 CFR 30.50(a) Radiography Source Failed to Fully Retract Into Camera 2010-01-31T10:30:00 | |