Previously the Ministry of Aviation Civil Aviation Department investigated aircraft accidents. In 1989 the Federal Civil Aviation Authority (FCAA) opened, and the Civil Aviation Department became the FCAA Department of Safety Services. During the same year the Accident Investigation Bureau (AIB), subordinate to the Ministry of Aviation, was established, and the FCAA no longer had accident investigation responsibilities. The name of the bureau was later changed to the Accident Investigation and Prevention Bureau. As part of the Civil Aviation Act of 2006, the AIB became an autonomous agency.