India's aviation regulator has ordered the country's airlines to inspect fuel control switches in Boeing aeroplanes, after their reported involvement in a fatal Air India crash that killed 260 people in June.

The U.S. Federal Aviation Administration and Boeing have privately issued notifications that the fuel switch locks on Boeing planes are safe.

Fuel switch locks have come under the scanner after a 2018 advisory from the FAA figured in the Aircraft Accident Investigation Bureau (AAIB)'s preliminary investigation report on Air India's Boeing 7