NTSB Probable Cause

POOR JUDGEMENT OF THE STUDENT PILOT BY FLYING WHILE UNDER THE INFLUENCE OF ALCOHOL, AND HIS VFR FLIGHT IN INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) WITHOUT THE REQUIRED QUALIFICATION OR TRAINING. FACTORS FACTORS RELATED TO THE ACCIDENT WERE: FAILURE OF THE STUDENT PILOT TO FOLLOW PROCEDURES AND DIRECTIVES, HIS LACK OF INSTRUMENT TRAINING, DARK NIGHT, ADVERSE WEATHER CONDITIONS, RISING TERRAIN, TREES, AND FAILURE OF THE PASSENGER TO USE A SEAT BELT.