A preliminary assessment in last month’s disaster focusing on fuel being cut to both engines only deepened the mystery for people grieving loved ones.

The report highlights a critical finding: two engine fuel control switches transitioned to 'CUTOFF' moments after lift-off. A perplexing recorded exchange between pilots, where one asks about the fuel cut-off and the other denies it,

An official report on the world’s deadliest aviation accident in a decade, seen by CNN, has answered one key question – but raised others.