Indian investigators' preliminary report on the crash of an Air India flight that killed 260 people has put the focus squarely on the pilots and the aircraft's fuel switches.

Video footage was "invaluable" to Australian crash investigators determining what led to Robinson R66 helicopter breaking up in mid-air in 2023, killing the pilot, the only person aboard, according to the Australian Transport Safety Bureau's final report, which was released 18 days after the Air India crash.

The report and India’s inspection order referred to an advisory from the Federal Aviation Administration in 2018 that recommended that carriers using Boeing models, including the 787, inspect the locking mechanism of the fuel control switches to ensure they could not be moved accidentally.