Sierra Industries of Uvalde, Texas, received STC’d approval for installation of Garmin G1000 avionics in Cessna Citation 501s. Developed in cooperation with Garmin, the STC allows installation of the three-screen digital flight deck suite in all 501s. Other Sierra STC upgrades for Cessna Citations include the Williams FJ44 Stallion modification, dual Cobham digital LCD engine displays, quick-release radome and “Pneu-Lift” baggage door mod.