Flight Crew Last 90 Days 200; Flight Crew Total 14700; Flight Crew Type 5600
Communication Breakdown; Workload; Situational Awareness; Distraction; Confusion
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown; Ground Event / Encounter Person / Animal / Bird
General None Reported / Taken
Human Factors; Procedure; Company Policy
Aircraft was pushed back and started via normal procedures. All appropriate checklists were accomplished. There was a delay in obtaining takeoff data due to a change in desired engine anti-ice configuration triggering errors. Prior to aircraft taxi the captain had me visually clear my side of the aircraft. I could not see any ground personnel or equipment; and gave him a clear indication for my side. We obtained clearance from ground control and taxied to the assigned runway.I was recently made aware that the ground crew had not disconnected when we taxied. Obviously; there was a breakdown in communication that resulted in a very unsafe and disturbing situation. Fortunately no personnel were injured.
After the fact; a B757 First Officer was made aware that he and Captain taxied with a ground crewmen head set still attached to the aircraft. Neither pilot saw the person.