 In 2000, the two CC-142 Dash 8 light transport aircraft were retired and sold into the private sector in 2002, leaving 402 operating only the CT-142 Dash 8s, affectionately nicknamed "Gonzo" operating in the air navigation training role.By 2009, and the changing demands of air forces worldwide, the training was adapted to include AESOPs (Airborne Electronic Sensor Operators) as well as ACSOs (Air Combat Systems Officers).CFANs and 402 Sqn.