NTSB

Probable cause: The student pilot’s improper decision to maneuver the airplane through an area of construction and his subsequent failure to maintain clearance from a concrete pole barrier while taxiing.

Probable cause: The pilot’s incorrect altimeter setting during the night visual approach, which resulted in a controlled flight into terrain.

Probable cause: The stuck No. 2 cylinder exhaust valve, which resulted in a partial loss of engine power and a subsequent forced landing and impact with a ditch.

Probable cause: The pilot’s failure to see and avoid power wires during approach.

Probable cause: The pilot’s failure to maintain an adequate approach path at night after an electrical failure, which resulted in the airplane striking runway lights.

Probable cause: The pilot’s improper engine modification and operation, which resulted in a total loss of engine power due to fuel starvation, and the pilot’s failure to maintain an adequate approach path, which resulted in the airplane landing short of the runway.

Probable cause: The pilot’s failure to apply carburetor heat while operating in an area conducive to carburetor icing, which resulted in a total loss of engine power on approach and subsequent forced landing into a creek.

Probable cause: Maintenance personnel’s inadequate inspection of the wheel brake system during the airplane’s most recent 100-hour inspection, which resulted in a loss of hydraulic fluid and the pilot’s inability to control the airplane during the landing.

Probable cause: A loss of engine power on takeoff due to restricted air flow to the engine.