Apparent gaps in AAIB’s preliminary report means that while a key factor in the disaster—cutting of the fuel supply—has been confirmed, not much else has. FAA’s insistence that the accident does not change its evaluation of the fuel switch problems counters the only switch-related technical issue discussed in the report.

As investigators probe the tragic crash of Air India AI-171, which killed 241 of the 242 passengers aboard on June 12, fresh details have raised some critical questions. Just four weeks before the fatal crash,

The Air India airliner carrying 230 passengers and 12 crew members was on its way to the United Kingdom when it crashed into a building shortly after takeoff on June 12, killing all aboard, except for one survivor, and several people on the ground, according to authorities.