WORKER WAS EXITING A CAT 769C WATER TRUCK & FELLTO THE GROUND APPROX 8 FT. WORKER ATTEMPTED TO USE THE WRONG EGRESS POINT WHILE EXITING THE WATER TRUCK DRIVER SIDE EGRESS POINT VERSUS PASSENGE R SIDE EGRESS POINT. INJURIES INCLUDE; HEAT TRAUMA, FX RIGHT WRIST, & VARIOUS ABRASIONS