Incident Overview
During a dual instructional flight near completion, a certified flight instructor (CFI) was providing training to a pre-solo student in a Cessna aircraft. The CFI followed the recommended airfield procedures and announced the aircraft's position over the common traffic advisory frequency (CTAF) on the 45-degree entry and downwind legs. However, the CFI failed to transmit the aircraft's position on the final approach leg and also failed to observe a Piper aircraft that was preparing for departure.
Actions of the Piper Pilot
Meanwhile, the pilot of the Piper aircraft, who was preparing to depart, failed to announce his intentions and position while on the taxiway and runway. He further failed to observe the inbound Cessna and consequently did not yield the right-of-way as required.
Collision and Outcome
As the Piper was being rotated for takeoff, the descending Cessna collided with it. The Piper pilot aborted the takeoff, and the Cessna landed without further incident.
Reported Obstructions
Both pilots reported that the presence of tall trees adjacent to the runway's approach had obstructed their vision.
Findings
No official probable cause was stated in the source document. The investigation noted communication and observation failures by both pilots.