NTSB

The pilot’s failure to maintain airspeed resulting in an inadvertent stall/spin. A contributing factor was the low altitude.

The owner/builder’s inadequate fuel tank inspection during construction, which resulted in fuel contamination and subsequent fuel starvation.

The pilot’s failure to maintain altitude and clearance from mountainous terrain while climbing, and his improper in-flight decision electing to fly at a low altitude toward rising terrain.

The animal on the runway during the landing, which caused the pilot to take off and land a second time, resulting in an overrun.

The pilot’s failure to maintain airspeed, which resulted in an inadvertent stall and uncontrolled descent and subsequent collision with the ground.

The pilot’s failure to maintain clearance from terrain. Contributing to the accident were the high, rising terrain and fatigue.

The inadvertent encounter with instrument meteorological conditions and failure to maintain adequate terrain clearance, which resulted in controlled flight into the terrain. Contributing factors were the pilots’ delayed decision to reverse course, and the low clouds, which obscured the rising terrain.

A loss of engine power due to an unsecured mixture control cable, which was not properly secured by maintenance personnel during a recent annual inspection.

The pilot’s inadequate in-flight planning by his failure to switch fuel tanks, which resulted in fuel starvation and the loss of engine power.