What was found
THE PILOT AND MEDICAL CREW ARRIVED AT RECEIVING HOSPITAL WITH PATIENT ON BOARD. WHILE UNLOADING THE PATIENT, THE CREW NOTICED THE LITTER DOOR HANDLE HAD BECOME DETACHED AND EXITED THE ACFT WHILE IN FLIGHT, AS IT WAS THERE PRIOR TO LIFTING OFF FROM THE SCENE. THERE WERE NO KNOWN ISSUES WITH LATCHING OR SECURING THE DOOR PRIOR TO FLIGHT. THE MECHANIC ARRIVED TO INSPECT THE ACFT AND REPLACE, INSTALL A NEW LITTER DOOR HANDLE. ALL WORK WAS COMPLETED, AND THE ACFT WAS RETURNED TO SERVICE.