On January 24, 2001, a Notice of Violation was issued for a Severity Level III problem and a Severity Level III violation involving an event that occurred during a radiography source exchange. The Severity Level III problem involved: (1) failure to survey, (2) failure to follow procedures in accordance with manufacturer's instruction, (3) failure to receive proper training prior to use, and (4) failure to perform required visual and operability check prior to using the source changer. The Severity Level III violation involved the radiographer's and Radiation Safety Officer's failure to stop activities and read the survey meter upon the sounding of the alarm ratemeter.