After six days of trekking, Per & Ralph flew in a Pilatus Porter airplane to an altitude of 29,500 feet (ca. 9 km), just above the peak of Mount Everest and jumped out in -50°C and free fell for one minute before opening the parachute and landed at the Drop Zone at 12,350 feet (ca. 4 km).
Cole Porter | Michael Porter | Gail Porter | Porter | David Dixon Porter | Porter Wagoner | Katherine Anne Porter | Howard Porter | Rich Porter | Porter County, Indiana | Porter Brook | Pilatus PC-12 | Gareth Porter | David Porter | Porter Square | Porter (beer) | porter | Pilatus PC-9 | Peter Porter (poet) | Peter Porter | Joel Porter | Janet Street-Porter | Jane Porter (Tarzan) | George Porter | Charles Ethan Porter | Aveling and Porter | William J. Porter | Russell W. Porter | Rodney Robert Porter | Robie Porter |
On March 22, 2009, a Pilatus PC-12 flying in from Oroville, California crashed in Holy Cross Cemetery 500 feet from the airport, killing all 14 people on board.
After the war, many aircraft were withdrawn from service, and modern ones were also obtained, notably 20 Pilatus PC-9 and 10 Bell 206B-3 in 1997.
On October 26, 2009, a Pilatus PC-12 on its way to Frankfurt Egelsbach Airport crashed in a field shortly after take-off from Kempen Airport, killing the two people on board.
Additional "civilian" aircraft operated from NKP were the Cessna 185, Cessna Skymaster, Pilatus PC-6, Helio Courier, de Havilland DHC-4 and Douglas DC-3.
On 12 October 2009, a PC-9M was involved in a fatal crash near Cornamona, in County Galway, which killed both pilots.
In addition to the prop-types Pilatus PC-6, Pilatus PC-7, Pilatus PC-9 and Pilatus PC-21 as well as helicopters it uses Sion intensively with the fighter jets F/A- 18 and F-5 Tiger.
Pilatus PC-12, an airplane with a United States military designation of "UC-28"