AN ACR LGT HIT A TRUCK ON THE RAMP AT THE CONCLUSION OF A PWRBACK OP.

Narrative

WE PWRED STRAIGHT BACK FROM GATE. GUIDEMAN GAVE COME FORWARD SIGNAL SO WE CAME OUT OF REVERSE TO SLOW OUR REARWARD MOVEMENT. AT THAT TIME I RECEIVED CLRNC FOR A R TURN. CAPT RECEIVED SALUTE FROM GUIDEMAN. (SALUTE IS COMPANY PROC INDICATING AREA IS CLR.) I CLRED AREA TO R THEN RELAYED TAXI CLRNC TO CAPT. WE BEGAN SHARP R TURN. THEN; AFTER ABOUT 20 DEGS OF TURN; ACFT STOPPED. AT THIS POINT WE DIDN'T KNOW WHY WE STOPPED. SUDDENLY; MANY RAMP AGENTS BEGAN RUNNING TOWARD THE ACFT. WE STILL DIDN'T KNOW WHAT HAPPENED UNTIL RAMP CTL ADVISED US THAT THERE WAS A TRUCK UNDERNEATH OUR R WING. WE COMPLETED OUR SHUTDOWN CHKLIST AND PAX WERE DEPLANED OUT THE REAR AIRSTAIRS. APPARENTLY; A RAMP AGENT PULLED UP NEXT TO THE AIRPLANE IN A PICKUP TRUCK TO PUT ANOTHER BAG IN THE BAGGAGE COMPARTMENT; BUT WE WERE NEVER INFORMED OF THIS NOR WERE WE TOLD TO STOP AIRPLANE. AFTER A SALUTE AND AREA IS VISUALLY CLRED BY PLTS; GND VEHICLES SHOULD NOT APCH A MOVING AIRPLANE. SUPPLEMENTAL INFORMATION FROM ACN 256324: AFTER WE CAME TO A STOP; A RAMP PERSON STARTED WAVING HIS WANDS FOR US TO STOP. WE WERE TOLD A GND VEHICLE WAS UNDER THE ACFT. WHAT HAPPENED WAS A LAST MIN ATTEMPT TO BOARD SOME BAGGAGE IN THE FORWARD CARGO COMPARTMENT. ACFT WAS MOVING AS TRUCK CAME UNDER IT AS WITNESSED BY PEOPLE ON ACFT LOOKING OUT.