NTSB Probable Cause

THE PILOT'S IMPROPER DECISION TO FLY INTO KNOWN ADVERSE WEATHER CONDITIONS, HIS FAILURE TO MAINTAIN CONTROL OF THE AIRPLANE, AND HIS IMPAIRMENT OF JUDGEMENT DUE TO DRUGS. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE DARK NIGHT, THE ADVERSE WEATHER CONDITIONS, THE PILOT'S LACK OF INSTRUMENT FLYING EXPERIENCE, AND HIS OVERCONFIDENCE IN HIS FLYING ABILITY.