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Aviation expert Captain Steve Scheibner believes dual engine failure caused the Air India crash near Ahmedabad. New footage shows the ram air turbine deployed, indicating an emergency. A survivor reported a loud bang and flickering lights.

Investigators are still probing what caused a London-bound Air India flight to crash in Ahmedabad shortly after take-off, killing more than 290 people. Whatever Air India’s role, the incident is a severe blow for the airline and its owner Tata,