No Aircraft
Maintenance Airframe; Maintenance Powerplant
Human-Machine Interface
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action; General Work Refused
Human Factors
I was assigned to shipping. I printed the list of RO's [Return Orders] and began to sort them. I packaged the item for shipping and processed through the (carrier) system. The morning pick up by (carrier) resulted in the return of 2 of 4 packages for Europe. The packages in question was in that group. These items needed the customs paperwork; not related to the Hazmat; and the pallet containing these item; was placed near the URM table to be worked later. In the afternoon pick up (carrier) driver did take the pallet; which I found out on Monday.
Airline Maintenance personnel reported Hazmat packages returned by freight carrier due to incomplete required documentation.