HAWKER SIDDELEY HS-125-700, JACKSON HOLE, WYO., DEC. 20, 2000–Two passengers and two pilots walked away from their substantially damaged aircraft after landing 195 ft left of the runway centerline. Night IMC prevailed for the ILS approach to Runway 18 into the Jackson Hole Airport (JAC). The Safety Board found probable cause to be “the pilot’s failure to follow IFR approach procedures and perform a missed approach when the runway was not in sight below approach minimums. Contributing factors were the copilot’s failure to follow current ILS approach procedures and use the correct frequency to turn on the runway lights, the snowy whiteout conditions near the ground and the dark-night light conditions.”
The two pilots, both ATP rated, began their day by repositioning the Hawker from Addison to Austin, Texas. Operating the aircraft under Part 135 for Million Air Dallas, they picked up two passengers and departed Austin at 2206 for Jackson Hole. As they approached JAC, the Salt Lake City Center controller gave the pilots the most recent weather: wind 250 deg at 10 kt gusting to 14 kt; visibility five miles; few clouds at 100 ft, 1,000 ft scattered, 1,600 ft overcast; temperature 25 deg F and dew point 16 deg F. The ILS requires a 300-ft ceiling and one mile visibility.
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