Following the crash, the Aircraft Accident Investigation Bureau (AAIB) launched a formal investigation to determine what went wrong and to ensure that such an incident does not happen again.

India's Aircraft Accident Investigation Bureau is investigating the crash with help from the U.S. National Transportation Safety Board. Authorities said Friday that the black box has been recovered.

After the Air India plane crash in Ahmedabad, the Aircraft Accident Investigation Bureau's role in inspecting the happenings turns crucial. Here's more details on AAIB and its cases.