What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During approach to land the pilot failed to secure the propeller in the manual mode. The pilot powered up to abort the landing and upon climb out, the increased engine RPM led the propeller to change to a low pitch to prevent overspeed situation. This is what the system is designed to do when not manually locked into the "manual mode." Once the pilot realized the propeller was not in the proper position, he attempted to lock the propeller in "manual mode" but there was not sufficient time for the pilot to change the pitch before the stall. Pilot had to pitch up to clear obstacles, airspeed decreased too slow, the propeller had not come to full "high" pitch and the aircraft stalled. Pilot was able to keep wings level all the way to impact.
As the FAA filed it
(-23) DURING APPROACH TO LAND THE PILOT FAILED TO SECURE THE PROPELLER IN THE MANUAL MODE. THE PILOT POWERED UP TO ABORT THE LANDING AND UPON CLIMB OUT, THE INCREASED ENGINE RPM LED THE PROPELLER TO CHANGE TO A LOW PITCH TO PREVENT OVERSPEED SITUATION. THIS IS WHAT THE SYSTEM IS DESIGNED TO DO WHEN NOT MANUALLY LOCKED INTO THE "MANUAL MODE." ONCE THE PILOT REALIZED THE PROPELLER WAS NOT IN THE PROPER POSITION, HE ATTEMPTED TO LOCK THE PROPELLER IN "MANUAL MODE" BUT THERE WAS NOT SUFFICIENT TIME FOR THE PILOT TO CHANGE THE PITCH BEFORE THE STALL. PILOT HAD TO PITCH UP TO CLEAR OBSTACLES, AIRSPEED DECREASED TOO SLOW, THE PROPELLER HAD NOT COME TO FULL "HIGH" PITCH AND THE AIRCRAFT STALLED. PILOT WAS ABLE TO KEEP WINGS LEVEL ALL THE WAY TO IMPACT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.
Other reports on N6RP · 1
Matched to the same aircraft by N-number and date.