An Air India flight AI180, en route from San Francisco to Mumbai, encountered a technical problem. *The incident occurred during a scheduled stop at Kolkata airport early Tuesday. A snag in the left engine caused a delay in takeoff.* Passengers were asked to deplane around 0520 hrs. The captain cited flight safety as the reason for the decision. https://m.economictimes.com/industry/transportation/airlines-/-aviation/air-indias-boeing-777-200lr-flight-from-san-francisco-to-mumbai-suffers-technical-snag-passengers-deplaned-in-kolkata/articleshow/121897542.cms