What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
This incident was originally classified as accident/ #LAX99LA146. Approximately 15 minutes after takeoff from las vegas mccarran int'l airport (las), the pilot lost control of the aircraft at 12700 MSL while climbing to 14000 in IMC conditions. The aircraft lost nearly 8000 feet while descending, something inverted, until the pilot regained level flight below the overcast in a desert valley. The pilot referred to the event as a "turbulence upset". Still in contact with los angeles center, the pilot received vectors first to daggett, then to Shoshone, CA, where he landed safely approximately 75 minutes after takeoff.
As the FAA filed it
THIS INCIDENT WAS ORIGINALLY CLASSIFIED AS ACCIDENT/ #LAX99LA146. APPROXIMATELY 15 MINUTES AFTER TAKEOFF FROM LAS VEGAS MCCARRAN INT'L AIRPORT (LAS), THE PILOT LOST CONTROL OF THE AIRCRAFT AT 12700 MSL WHILE CLIMBING TO 14000 IN IMC CONDITIONS. THE AIRCRAFT LOST NEARLY 8000 FEET WHILE DESCENDING, SOMETHING INVERTED, UNTIL THE PILOT REGAINED LEVEL FLIGHT BELOW THE OVERCAST IN A DESERT VALLEY. THE PILOT REFERRED TO THE EVENT AS A "TURBULENCE UPSET". STILL IN CONTACT WITH LOS ANGELES CENTER, THE PILOT RECEIVED VECTORS FIRST TO DAGGETT, THEN TO SHOSHONE, CA, WHERE HE LANDED SAFELY APPROXIMATELY 75 MINUTES AFTER TAKEOFF.