The following was received from the State of
Louisiana via email:
A radiography inspection was being performed on a Central Testing crew at the Tri-7 facility in Sulphur, LA. At a point during the inspection, the inspector requested that the crew demonstrate a misconnect/disconnect test on the camera and drive cables in use. The crew stated that the equipment had passed the test before the equipment was put into service for the day. However, during the demonstration, the 'control assembly' on the crankout set functioned in a test failure mode. The control assembly easily slipped into position without the drive cable being attached to the source assembly, 'pigtail.' With this failure, the RSO was contacted and an additional set of crankouts were brought to the jobsite.
The crankout was evaluated and it was determined that the control assembly is what failed during the test. The control assembly was replaced on the crankout and it corrected the misconnect/disconnect test failure. This test is to be performed on the equipment daily with use. This is a requirement of LA Radioactive Material License LA-2393-L01A, Condition # 16.
The exposure device was a SPEC Model 150 camera, S/N 1057, loaded with a 63 Ci Ir-192 source, SPEC Model G-60. The associated equipment was manufactured by SPEC, crankout and control assembly, with unknown model and s/ns. When the equipment was replaced, the radiography crew was allowed to resume their work.
LA Event Report ID: LA 15-0004