A leading aviation safety expert has suggested that the fatal crash of Air India Flight 171 may have been the result of deliberate human action, raising, for the first time, the possibility of a pilot-induced crash. Captain Mohan Ranganathan, one of India's leading aviation experts, has pointed to the sequence of fuel cutoff switches and cockpit audio to suggest that the crash may have stemmed from deliberate actions taken in the cockpit, potentially even suicide.