The deadly Air India crash last month has renewed a decades-old debate in the aviation industry over installing video cameras monitoring airline pilot actions to complement the cockpit voice and flight data recorders already used by accident investigators.

The CEO of Air India sought to draw a line under rife speculation around the cause of last month's air disaster in Ahmedebad, saying the preliminary investigation had ruled out a mechanical cause for the crash.

Aviation experts are calling the sudden engine fuel cutoff on an Air India jetliner “absolutely bizarre.” A preliminary report into the crash that killed at least 260 people does not clarify how the fuel control switches were turned off.

A preliminary investigation report into the Air India crash on June 12 has revealed what happened on the Boeing Dreamliner during its final moments — a 32-second journey from lift-off to its crash into hospital buildings near the airport. The Reuters Daily Briefing newsletter provides all the news you need to start your day. Sign up here.

The ICPA says any suggestion of pilot suicide without evidence is a "disservice" to the dignity of the profession.