A year on, six questions still haunt the Air India crash investigation (opens original article in a new tab)

A year after the Air India crash, investigators have not yet determined the cause of the Boeing 787's sudden loss of power and crash, with multiple hypotheses including human error or technical issues remaining unconfirmed.

• A year after the Air India crash, investigators have not determined the cause of the Boeing 787's sudden loss of power and crash.
• The preliminary report indicated fuel-control switches moved to 'cut-off' position, but the cause remains unclear with multiple hypotheses including human error or technical issues.
• The investigation faces delays and controversy, with stakeholders including pilots' groups and families of victims questioning the focus on cockpit actions over technical factors.