What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot attempted to land on a gravel bar in a river bed. He lined up his approach at a bad angle. Once he touched down in an effort to turn left with the slope of the gravel bar the aircraft groundlooped and subsequently flipped and ended up in the river upside down.
As the FAA filed it
PILOT ATTEMPTED TO LAND ON A GRAVEL BAR IN A RIVER BED. HE LINED UP HIS APPROACH AT A BAD ANGLE. ONCE HE TOUCHED DOWN IN AN EFFORT TO TURN LEFT WITH THE SLOPE OF THE GRAVEL BAR THE AIRCRAFT GROUNDLOOPED AND SUBSEQUENTLY FLIPPED AND ENDED UP IN THE RIVER UPSIDE DOWN.
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 N5407B · 2
Matched to the same aircraft by N-number and date.