B757-200 CREW CLRED TO TAXI ACFT STRUCK DEICE TRUCK WITHIN THE TAXI ZONE.

Narrative

WHILE DEICING ON A SPECIAL DEICE RAMP; THE CAPT COULD NOT ESTABLISH COM WITH THE DEICE COORDINATOR ON THE GND DUE TO FAULTY HEADSET (COORDINATOR'S). WE THEN CONTINUED ON WITH THE PROCESS USING OUR COMPANY'S ALTERNATE COM PROCESS VIA THE DEICE RAMP CTL TWR WHO COMMUNICATED WITH THE COORDINATOR (WITH THE FAULTY HEADSET) VIA OTHER RADIO. WE CONFIGURED THE ACFT FOR DEICING AS PER OUR COCKPIT OPERATING MANUAL AND THE DEICING STARTED. WE WERE INFORMED THEY WERE GOING TO USE TYPE I; THEN TYPE IV FLUIDS. AFTER A WHILE; DEICE RAMP TWR (NOW OUR ONLY WAY OF COMS) CALLED US WITH THE FINAL DEICE RPT OF THE TYPE IV APPLICATION AND THE TIMES (TO START OUR HOLD-OVER PERIOD). WE WERE THEN CLRED TO TAXI OUT OF THE RAMP AND CONTACT GND ON 121.8. WE RECONFIGURED THE ACFT FOR TAXI AS PER THE SOP'S AND CONTINUED TO CALL GND WHO CLRED US TO TAXI AS WELL. WE VISUALLY CLRED THE AREA. AS SOON AS THE ACFT STARTED MOVING; WE FELT A 'THUMP' AND A 'SKIP'. ANOTHER ACFT INFORMED US THAT THE WING HAD CONTACTED ONE OF THE DEICING TRUCKS. ON A LATER COMPANY DEBRIEF WE CAME TO REALIZE THAT THE RAMP TWR TOOK THE TYPE I APPLICATION RPT AS THE TYPE IV AND FINAL RPT; THUS GAVE IT TO US AS THE FINAL RPT; AND SINCE FROM HIS LOCATION HE WAS UNABLE TO SEE THE TRUCK; HE CLRED US TO EXIT THE RAMP. WHEN WE VISUALLY CLRED THE AREA WE HADN'T SEEN THE TRUCK AS WELL. ON THE B757 YOU CAN'T SEE THE WINGS FROM THE COCKPIT. THE ACTUAL MISCOM OCCURRED BTWN THE GND COORDINATOR AND THE RAMP TWR. THE THIRD PARTY COM THOUGH; ALLOWED BY OUR FOM; COULD HAVE BEEN AVOIDED HAD THE GND COORDINATOR HAD A WORKING HEADSET. (WE WERE HIS FIRST ACFT THAT DAY; SO HE WAS NOT AWARE OF THE PROB BEFORE IT HAPPENED.) SUPPLEMENTAL INFO FROM ACN 428321: WE HAD STRUCK A DEICE TRUCK AND MADE A CALL FOR MEDICAL ASSISTANCE FOR THE INJURED TRUCK PERSONNEL.