Tragedy struck this week when a plane crashed in the city of Ahmedabad just shortly after takeoff, leaving investigators and aviation officials with many questions.

Air India plane crash investigators find the first of the "black boxes" from the Boeing 787-8 that slammed into buildings, killing all but one of the 242 people on board.

According to the International Civil Aviation Organisation, audio recordings from cockpit voice recorders supplement flight data by providing related details on flight crew responses. The recordings also aid in assessments of how radio communications or other outside distractions may have been a factor in an accident.