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

Indian investigators cited a 2018 FAA advisory that had warned Boeing operators to inspect the locking mechanism of fuel cutoff switches to prevent unintentional movement. However, the FAA had not mandated any action.

The US Federal Aviation Administration has issued a notice to its international counterparts that fuel control switches in Boeing aeroplanes like the Dreamliner involved in last month’s fatal Air India crash do not pose a safety issue.