The United States purchased the C-27A to move the AAF away from Soviet aircraft. A total of 20 former Italian military C-27As were purchased with the intent of providing the Afghan Air Force a fleet that would last 10 years. However, the prime contractor in the refurbishment and supply of the planes, Alenia Aermacchi North America, a unit of Italian defense conglomerate Finmeccanica S.p.A., was unable to provide adequate maintenance support for the aircraft. As a result, the majority of the fleet at any time was grounded for safety of flight issues (including a period where the entire fleet was grounded for over 6 months). The US military worked over the course of three years with Alenia North America to get the fleet fully operational.