NTSB Probable Cause

POOR JUDGEMENT OF THE PILOT, DUE TO IMPAIRMENT FROM CONSUMPTION OF ALCOHOL, AND HIS FAILURE TO MAINTAIN ADEQUATE AIRSPEED, WHILE MANEUVERING DURING AN ABORTED LANDING (GO-AROUND). FACTORS RELATED TO THE ACCIDENT WERE: THE OPEN CARGO DOOR, DISABLED FLAPS, AND THE PILOT'S DISTRACTION (DIVERTED ATTENTION).