A preliminary report into the tragic Air India 171 crash that killed 260 people has sparked fury from grieving families and pilots alike, as it raises more questions than it does answers

Boeing and the United States Federal Aviation Agency (USFAA) recently notified that the fuel switch locks used in flight are safe, as per a report from Reuters. This comes at a time when the fuel switch lock mechanics have come under scrutiny amid the ongoing investigation into the Air India AI 171 crash.

The Air India CEO Campbell Wilson has stated that no mechanical maintenance error was found in the AI-171 crash investigation. The preliminary probe points to a fuel cut-off switch issue, with the switch moving from 'run' to 'cut-off' shortly after takeoff.