The following information was received from the State of
Iowa via email:
The Iowa Department of Public Health (IDPH) was conducting a field inspection of Midwest Industrial X-Ray on Friday, June 24, 2011. The licensee was conducting 1 minute, 15 second shots on 12" diameter gas pipeline in a 10 foot deep trench. They were using a SPEC model 150 camera with a 49 Curie Iridium-192 source and SPEC control cables. After completion of the third shot, the licensee was unable to retract the source. The lead radiographer disassembled the control cable crank mechanism and manually pulled the source back into the shielded position. The licensee then reassembled the crank mechanism and attempted a third shot. Once again, they could not retract the source. The radiographer disassembled the crank mechanism, pulled the source into the shielded position and secured from any additional radiography that day. The licensee indicated that they had similar problems with SPEC control cables in the past. The radiographer and assistant radiographer's pocket dosimeters both indicated less than 5 milliRem. The licensee will submit a written report within 30 days.
The radiography was being performed in the Redfield Gas Storage facility in Redfield, IA. The event was reported by Midwest Industrial X-ray of Fargo, ND.
Iowa Report No.: IA110004