Days after the Air India crash in Ahmedabad, the head of the Federal Aviation Administration said on Thursday that the fatal crash of the Boeing 787 jet does not appear to have been caused by a mechanical issue or inadvertent movement of the fuel control unit or switches.

The two engines on the Air India flight shut down within one second of each other before the Boeing 787 Dreamliner crashed last month in Ahmedabad, India, killing at least 260 people, according to a preliminary report released Friday.

The FAA has determined the Air India Boeing 787 crash wasn't due to mechanical or fuel control issues. The investigation focuses on fuel control switches, which haven't shown faults per inspections. Preliminary insights suggest intentional fuel cut-off,