section_path: Accident
section_name: Accident
paragraph_text: Accident
  
  Flight 171 took off from runway 23 of Ahmedabad Airport at 13:38 IST (08:08 UTC) en route to London Gatwick. According to METAR reports issued around the time of departure, the surface winds at the airport were light, ranging from 3 to 6 knots; the visibility was 6 kilometres (3.7 mi); and there were no significant clouds.
  
  The aircraft's ADS-B transponder reported a maximum pressure altitude of around 625 feet (191 m) above mean sea level while still over the runway before the signal was lost at 08:08:50 UTC. The flight crew issued a mayday call, reporting a loss of power and thrust shortly after takeoff. The aircraft was airborne for about 30 seconds.
  
  A video recording from a CCTV security camera next to the runway shows the aircraft initially gaining altitude, then gradually descending while appearing to pitch up and, just out of view, crashing around thirty seconds after takeoff, followed by a plume of fire and smoke. Another video of the incident taken by an aviation enthusiast shows the last few seconds before impact. The crash site was 1.5 kilometres (0.9 mi) away from the runway.
  
  The crash resulted in multiple explosions as the aircraft hit a building and slid; they were followed by thick plumes of smoke. The plane crashed into the residential area of the Civil Hospital campus, hitting the doctors' quarters and the students' hostel buildings of the hospital's B. J. Medical College. The aircraft's partially intact stabilisers and tail cone came to rest on top of the multi-storey hostel building.
  
  This was Air India's first fatal hull loss since the bombing of Air India Flight 182 in 1985, and the first fatal crash and the first hull loss of the Boeing 787 Dreamliner.