Overview
On an unspecified date, a twin-engine airplane departed from Provo Airport. Minutes after takeoff, while climbing through marginal weather conditions with limited visibility, the aircraft collided with the slope of a mountain near Spanish Fork, several miles southeast of Provo.
Accident
The wreckage was discovered four days later, on January 13. All five individuals on board were killed. The accident occurred during the climb phase of flight, transitioning from climb to cruise altitude.
Investigation
The official investigation determined the probable cause of the accident to be a controlled collision with terrain due to improper IFR (Instrument Flight Rules) operation. Contributing factors reported include inadequate preflight preparation, low ceiling, fog, snow, and visibility of three-quarters of a mile or less.