Air India Flight 171, a Boeing 787-8 Dreamliner, crashes shortly after takeoff into the B. J. Medical College, Ahmedabad, India, killing 241 out of 242 onboard as well as 19 on the ground. This marked the first fatal crash and hull loss of the Boeing 787 Dreamliner.

Air India Flight 171 was a scheduled passenger flight from Ahmedabad Airport in India to London Gatwick Airport in the United Kingdom that crashed 32 seconds after takeoff at 13:39 IST on 12 June 2025. All but 1 of the 230 passengers and all 12 crew members died. On the ground, 19 people were killed and 67 people were seriously injured.

The Boeing 787 Dreamliner is an American wide-body airliner developed and manufactured by Boeing Commercial Airplanes.

B. J. Medical College (BJMC) is a public medical college situated in Ahmedabad, Gujarat, India. It is attached with the Ahmedabad Civil Hospital, within whose complex it is located.

Ahmedabad, also spelled Amdavad, is the most populous city in the Indian state of Gujarat. It is the administrative headquarters of the Ahmedabad district and the seat of the Gujarat High Court. Ahmedabad's population of 5,570,585 makes it the fifth-most populous city in India, and the encompassing urban agglomeration population was estimated at 8,854,444 is the seventh-most populous in India. Ahmedabad is located near the banks of the Sabarmati River, 25 km (16 mi) from the capital of Gujarat, Gandhinagar, also known as its twin city.

June 12 is the 163rd day of the year in the Gregorian calendar; 202 days remain until the end of the year.