20160118000449A

On 01/18/2016 N117BX took off from the Salt lake city international airport (slc) headed for tucson, AZ. There were 2 people onboard the PIC and 1 passenger. After climb out from slc and passing thru 14600? The pilot reported a failure of the #1 FMS and an auto pilot de-couple. The pilot also reported other instruments and systems were available. There are other communication between the pilot and ATC during the events leading up to the main accident. As the aircraft is nearing Cedar Fort, UT the aircraft fails to respond to ATC, the aircraft has climbed to an altitude of 21400?. At this point radar contact is lost and the transponder stops transmitting altitude. The aircraft was found later the same day in an open snow covered field. The aircraft was destroyed and all occupants were killed. An investigation was conducted at the scene and yielded the following results: the left and right engines were separated from the aircraft. At the time of this report the left hand engine is still missing. The wing along with the support structure were torn from the aircraft and folded over the main wreckage. All materials and edges of exposed material showed signs of ductile overload from tension and torque. The tail section of the aircraft was found appx ½ mile to the north of the main wreckage. Pieces of the wings both right and left were separated and sections were found appx 1 mile from the main wreckage. The right hand engine was found appx 250? From the main wreckage to the west. All exposed metal showed signs of ductile overload. The aft section of the main wreckage was burned from the outside and the external skin was melted away. This is consistent with a fuel fire in flight (opinion: due to a rupture of the fuel tank and spraying the aft section of the aircraft with fuel that was ignited by a spark or the hot engines). The main wreckage was compressed and very few ground scars leading up to the main body of the aircraft. This report will be added to if and when new information becomes available.