Accident Case Study: Risk Stacking - Air Safety Institute Watch in HD on YouTube! Share on Facebook! It’s a cold spring morning on April 13, 2022, when a cargo pilot in a Cessna 208 Caravan departs Salt Lake City International Airport in Utah. Her IFR flight plan takes her 133 nautical miles to the northwest, where she plans to fly the RNAV Runway 20 approach into Burley, Idaho.