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.

Imtyaz Ali, an Indian man who lost 4 family members in the Air India plane crash, said he was disappointed in the investigation report. He mentioned why.

India on Monday ordered its airlines to examine fuel switches on several Boeing aircraft models while South Korea ordered a similar measure on Tuesday, as scrutiny intensified of fuel switch locks at the centre of an investigation into a deadly Air India crash.

The preliminary report into Air India Flight 171 said the fuel was cut off to both engines seconds after liftoff, and cited a 2018 FAA advisory.

Boeing and the Federal Aviation Administration issues a notification that 787 fuel switches are safe after India's preliminary crash report published.

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NEW DELHI (Reuters) -Indian investigators of the deadly Air India airliner crash that killed 260 last month told a meeting of lawmakers that the plane's black boxes were not damaged, two people familiar with the discussions said.