New Delhi, June 13 -- All but one passenger were killed when an Air India plane bound for London crashed moments after taking off from Ahmedabad, Gujarat, on Thursday, in the world's worst aviation disaster in a decade. The airline said in a statement that of the 242 aboard, there are 241 confirmed fatalities. "The sole survivor is being treated in a hospital," it said.

Here's all the key things you must know about the Air India Ahmedabad crash:

1. The Air India flight AI-171 from Ahmedabad to London was Boeing 787-8 Dreamliner. It was headed for Gatwick Airport, south of the British capital.

2. CCTV footage showed the plane taking off over a residential area and then disappearing from the screen before a huge fireball could be seen ri...