The following information was received via E-mail:
This event occurred at a permanent shooting cell at the licensee's facility in Amite LA.
The RSO was performing the semi-annual leak test on his radiography cameras. One is loaded for use in radiography and the other is essentially considered in storage. He removed the guide tube to swab the port entry and finished the paperwork for the leak test. Later he went to make an exposure and the source extended the length of the drive cable and would not retract into the shielded position. The source was stuck out into the vault shooting bay area.
The equipment was an Amersham Model 680-BE, s/n BE 178 loaded with approximately 50 Ci of Co-60, a QSA Global source s/n 45274B. The associated equipment was an Amertest Automatic Exposure Control, Model 957, s/n 67.
This was operator error. The RSO did not reattach the guide tube after performing a leak test at the camera's port. The source was being utilized in a fixed shooting cell/vault when it would not retract.
[In order to retrieve the source] the side panel was removed from the camera and a manual source retraction was performed. The source was shielded from unnecessary exposure, ALARA [as low as reasonably achievable], during the source retrieval. Again, this was operator error, not equipment failure.
The source is secure from removal and unnecessary exposure. This event is not closed and additional investigation and evaluation will continue. The source is in a safe shielded position and no threat to workers or the general public.
Louisiana Event Report ID No.: LA150001