[3] Sierra Pacific also previously operated scheduled passenger service in the western U.S. with prop and turboprop aircraft.

[4] It was renamed Sierra Pacific Airlines when the FAA granted permission to operate aircraft weighing over 12,500 lbs.

During the winter ski season of 1975–1976, the airline was flying nonstop service from Mammoth Lakes to Los Angeles, Las Vegas and Fresno with direct, one stop service to Burbank with 50 passenger seat Convair 580 turboprops and 19 passenger seat Handley Page Jetstream turboprops.

[7] Until his death in November 2014, the long-time President of Sierra Pacific was Garfield Thorsrud, the founder of Mountain West Aviation.

According to its November 22, 1976, system timetable, Sierra Pacific was operating scheduled passenger service flown with Convair 580 and Handley Page Jetstream turboprop aircraft to the following destinations:[9] The airline also served Burbank, CA (BUR) and Las Vegas, NV (LAS) earlier in 1976.

The filmed segment was recovered in the tail section wreckage and was broadcast as the television documentary Primal Man.