India, Jan. 8 -- The Aircraft Accident Investigation Bureau (AAIB) has asked the Directorate General of Civil Aviation (DGCA) to inspect all scheduled airlines and the air navigation services provider to assess their safety management systems. The recommendation follows a near-miss involving two IndiGo aircraft over Delhi in 2023.

In its final report -- published on Wednesday -- the AAIB said safety margins dropped to dangerously low levels moments after takeoff during airprox (air proximity) incident at Delhi's Indira Gandhi International Airport on the November 17, 2023. This triggered collision avoidance alerts, averting a potential major accident.

Besides DGCA inspections, the AAIB asked IndiGo to ensure correct Flight Management an...