US's Four Corners Aviation ceases Citation charter ops
Four Corners Aviation (ULA) has ceased Cessna Citation charter operations following the retirement of its sole Citation XLS from its Part 135-certified fleet, ch-aviation research reveals. N619FK (msn 560-5777), a 16.7-year-old aircraft configured for up to eight passengers, was last active under Four Corners Aviation’s 'ULA' code on December 31, 2024, flying between Dallas/Fort Worth [...]