Cessna Aircraft is commemorating the 20th anniversary of its Greensboro Citation Service Center at Piedmont Triad International Airport in Greensboro, N.C. It is one of the busiest in the network of 15 company-owned service centers and this year handled approximately 2,500 service orders for aircraft based in or traveling through the mid-Atlantic U.S. The facility doubled its original ramp area in 2008 and in recent years stationed mobile service units within the Greensboro service area.