New Delhi, June 12 -- The Aircraft Accident Investigation Bureau (AAIB), which is probing the tragic accident in Ahmedabad involving Air India Flight AI-171, a Boeing 787-8 aircraft, has said that it has made significant progress in the examination and analysis of aircraft systems, flight recorder data and engine-related components and that evidence gathered and results of examinations are being analysed in a comprehensive manner.

In an Interim Statement on the progress of the investigation into the accident on Friday, which marked one year of the tragic accident in which 260 people were killed, AAIB said that over the past year, the investigation team has undertaken an extensive and rigorous examination of all relevant technical, operat...