Flight Crew Air Transport Pilot (ATP)
Training / Qualification; Distraction
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
Flight Crew Became Reoriented; Flight Crew Returned To Gate
Chart Or Publication; Human Factors; Procedure
On taxi out for departure; we received an ACARS message to return to the blocks because of an improper loading problem.   Upon further questioning; we were told Radioactive material of .7 TI was loaded in 2L.  Company Dangerous Goods guidance states all radioactive material must be loaded in position 3 or aft.The Ramp Personnel loaded radioactive material forward of position 3; and the improper loading was not caught by the ramp personnel or flight crew before block out.I suggest better adherence to Company Dangerous Goods guidance and attention to detail when reviewing the paper work.
While taxiing out a cargo aircraft was recalled to the ramp after it was discovered that Radioactive material was improperly placed in a cargo position forward of where Company Dangerous Goods guidance allowed.