What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) A/c landed 0S7 at 0900 LCL to clear customs. About 1440 LCL, a/c finally cleared customs and departed 0S7 enroute to billings, MT. T.o. runway 33 followed by immediate right turn-out up valley. A/c crashed about 6 miles from 0S7 in rising terrain. A/c separated into three major pieces. Pilot was fatal at impact. Post impact fire was confined to wing section (a/c had been fully fueled for departure from 0S7). Pilot was not exposed to fire.
As the FAA filed it
(-23) A/C LANDED 0S7 AT 0900 LCL TO CLEAR CUSTOMS. ABOUT 1440 LCL, A/C FINALLY CLEARED CUSTOMS AND DEPARTED 0S7 ENROUTE TO BILLINGS, MT. T.O. RUNWAY 33 FOLLOWED BY IMMEDIATE RIGHT TURN-OUT UP VALLEY. A/C CRASHED ABOUT 6 MILES FROM 0S7 IN RISING TERRAIN. A/C SEPARATED INTO THREE MAJOR PIECES. PILOT WAS FATAL AT IMPACT. POST IMPACT FIRE WAS CONFINED TO WING SECTION (A/C HAD BEEN FULLY FUELED FOR DEPARTURE FROM 0S7). PILOT WAS NOT EXPOSED TO FIRE.