The pilot of the departing airplane’s failure to see and avoid the landing airplane before takeoff, resulting in a collision with the landing airplane. Contributing was the airport’s failure to encourage pilots to use radios for traffic deconfliction when equipped.
NTSB
Plane near maximum gross weight crashes after takeoff with 10° of flaps
Both pilots’ decision to perform the takeoff near maximum gross weight with 10° of flaps, contrary to the owner’s manual procedure, which resulted in the airplane’s degraded climb performance approaching high terrain.
Stuck exhaust valve leads to forced landing that injures two
The partial loss of engine power due to a stuck exhaust valve.
Pilot commits suicide by crashing into ocean
The pilot’s suicide.
Human Factors: An unhealthy tango for two
We have a less than ideal airport layout with intersecting runways, view-limiting terrain, and published data ignored by the locals. Why, yes, that does seem like a good recipe for an accident, doesn’t it?
Open door distracts Cirrus pilot
The pilot’s failure to maintain directional control while landing, resulting in a runway excursion. Contributing to the outcome was the pilot’s failure to ensure that the airplane’s right side door was properly secured prior to departing on the accident flight, and his subsequent distraction due to the door during the landing attempt.
Pilot seriously injured when experimental crashes
The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.
Fuel exhaustion fatal for two
A total loss of engine power due to fuel exhaustion.
First flight after repairs ends in crash
The pilot/mechanic’s inadequate inspection of the faulty horizontal stabilizer trim switch, which resulted in an uncommanded trim movement during the takeoff roll, which resulted in an aborted takeoff, and subsequent nose over.