1 killed as private jet crashes in Warm Springs mountains Updated Feb 04, 2021; Facebook Share , of Portland, by the Warm Springs Police Department. Early reports indicated there was also a passenger on board but authorities determined Boehlke was alone when the plane went down. A pilot and passenger were killed when a small private jet crashed into a mountainous area of Warm Springs tribal land. The AP reports that air traffic control notified Warm Springs Tribal Police Saturday afternoon of the possible crash in the Mutton Mountains. According to the FAA, air traffic controllers lost communications with the Cessna C560 business jet at 1:30 p.m. near Pine Grove, just north of the reservation in Wasco County.