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Air India flight 171 from Ahmedabad to London-Gatwick crashed shortly after take off on the afternoon of 12 June. The Boeing 787-8 “Dreamliner” lost height just seconds after departure and impacted a neighborhood to the southwest of the airport. Air India says that one of the 242 people on board the aircraft survived the crash. This is the first hull loss of a Boeing 787.
Air India flight 171
AI171 departed Ahmedabad at 08:08:44 UTC (13:38 local time). The aircraft climbed to a maximum recorded barometric altitude of 625 feet at 08:49:46 before losing altitude. The last received data from AI171 by Flightradar24 occurred at 08:08:51.
Calculating altitude above ground level for Air India 171
Altitude data reported via ADS-B is based on uncalibrated barometric pressure above mean sea level, reported at standard pressure. That means that the altitude sent from the aircraft is not the altitude above ground level. Taking into account local air pressure and elevation, Flightradar24 has calculated AI171’s altitude above ground level. The calculations use QNH (local pressure setting) of 1001 hPa and airport elevation of 189ft. Calculations do not account for local air temperature and ADS-B altitude values have a resolution of 25 feet, therefore some uncertainty still exists. Computed altitude AGL values should only be used for information purposes.
Downloadable data
The CSV below contains all frames received from Air India 171, and position and barometric altitude when available.
Aircraft information
Air India flight AI171 was operated by a Boeing 787-8 registered VT-ANB (MSN 36279). The aircraft is powered by two GEnx-1B engines. The aircraft was delivered new to Air India in January 2014.
This is a developing story and additional updates will be added to this post as they become available.
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