While the preliminary report into what caused the loss of Air India Flight 171 last month has provided some answers, it has also prompted a wave of speculation about its cause.
The Boeing 787 Dreamliner crashed into a building less than a minute after take-off from the city of Ahmedabad in western India en route to London, killing 241 people on board, along with 19 on the ground. One passenger survived.
Information contained in India's Air Accident Investigation Bureau report, the first official account of what happened, has raised questions about the role of the pilots.
However, experts within the aviation industry claim investigators have been highly selective in what they have chosen to say.
What the report says
Under international protocols, the state leading an air accident investigation is meant to issue a preliminary report within 30 days. The 15-page document published by India's Air Accident Investigation Bureau (AAIB) on Saturday fulfils this requirement.
Although the AAIB has been leading the investigation, US interests are also represented, because Boeing, the maker of the aircraft, and GE Aerospace, the engine manufacturer are American.
The report does not set out any conclusions as to the cause of the accident. Nevertheless, it has sparked considerable controversy.
In its account of the accident flight, the AAIB states that two fuel cut-off switches were moved from the "run" to the "cut-off" position seconds after take-off.