Overview

• The AAIB's preliminary report confirms that the fuel control switches for both engines moved to the “cutoff” position seconds before Air India Flight AI171 lost power
• Cockpit voice recordings reveal a pilot questioning the sudden fuel shutdown and the other denying responsibility for cutting fuel supply
• Both engines began losing thrust immediately after the cutoff, causing the Boeing 787-8 to crash into residential housing near Ahmedabad and kill 260 people
• Investigators from India, the UK and the U.S. plan months of detailed flight-data analysis using cockpit recordings without drawing conclusions on responsibility
• Regulators are revisiting a 2018 FAA safety bulletin on fuel-switch locking mechanisms as Boeing and Air India continue to cooperate with the ongoing probe