Air India and Boeing are in the midst of significant turnarounds, but knowing the cause of the crash of Flight 171 will take a lengthy investigation.

On June 12, an Air India Boeing 787 crashed near Ahmedabad, killing 241 people, including five medical students in a hostel. The tragedy ignited a major fire and prompted an investigation by the DGCA,

An Air India crash Thursday involved a Boeing 787-8 Dreamliner, which the aircraft manufacturer first delivered 14 years ago.

Sumeet Sabharwal, who the Indian government has said had 8,200 flying hours of experience and was also an Air India instructor, was the commanding pilot of flight AI171. His co-pilot was Clive Kunder who had 1,100 hours of experience. Sabharwal's funeral took place in Mumbai on Tuesday.