What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Acft crashed under unknown circumstances and sustained substantial damage. (-23) pilot was enroute from Itkillik Lake to bettles, Alaska. He became lost, disoriented, flew up wrong river bed into box canyon. Weather worsened with fog and rain showers. No room to turn around. Pilot attempted to outclimb rising terrain, but could not. Stall horn sounded. Pilot executed controlled crash.
As the FAA filed it
ACFT CRASHED UNDER UNKNOWN CIRCUMSTANCES AND SUSTAINED SUBSTANTIAL DAMAGE. (-23) PILOT WAS ENROUTE FROM ITKILLIK LAKE TO BETTLES, ALASKA. HE BECAME LOST, DISORIENTED, FLEW UP WRONG RIVER BED INTO BOX CANYON. WEATHER WORSENED WITH FOG AND RAIN SHOWERS. NO ROOM TO TURN AROUND. PILOT ATTEMPTED TO OUTCLIMB RISING TERRAIN, BUT COULD NOT. STALL HORN SOUNDED. PILOT EXECUTED CONTROLLED CRASH.