The pilot's failure to maintain clearance from a truck while landing, and the vehicle operator's decision to ignore runway warning signals. Contributing to the accident was an inoperative vehicle gate system and the failure of airport management to adequately maintain the gate system and issue a NOTAM.

THE PILOT'S IMPROPER DECISION IN ATTEMPTING TO OUTCLIMB THE RISING TERRAIN WITH THE EXISTING AIRPLANE CLIMB PERFORMANCE. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE PILOT'S INADEQUATE PREFLIGHT OF THE AIRPLANE, THE OVER MAXIMUM GROSS WEIGHT OF THE AIRPLANE, HIGH TERRAIN, HIGH DENSITY ALTITUDE, THE PILOT'S LACK OF RECENT FLYING EXPERIENCE, HIS OVERCONFIDENCE IN HIS AIRMANSHIP ABILITY, QUESTIONABLE TESTING OF THE PILOT'S FLYING COMPETENCY AND PROFICIENCY, AND THE STATE OF ALASKA'S INADEQUATE OVERSIGHT OF THE AVIATION PROGRAM WHICH ALLOWED MANAGEMENT TO DISREGARD THEIR OWN REGULATIONS.