印度这起空难，疑点重重

Group 1: Incident Overview - The Indian Airlines Flight 171, a Boeing 787-8 Dreamliner, crashed shortly after takeoff from Ahmedabad to London, resulting in at least 241 fatalities, making it one of the deadliest aviation disasters in the last decade [1][2] - The aircraft was 11.5 years old and had a history of production quality issues, raising concerns about Boeing's future following this incident [2][22] Group 2: Technical Analysis - The aircraft's ADS-B data was incomplete, indicating potential issues with the aircraft's systems, as the data intervals were significantly longer than normal [3][4] - Initial assumptions about the aircraft using only half of the runway were corrected, confirming that it used the full 3400 meters for takeoff [4][10] - Video evidence showed the landing gear was down, flaps appeared to be retracted, and the aircraft released the RAT (Ram Air Turbine), suggesting abnormal conditions during the flight [6][11][13] Group 3: Engine Performance and Failure - The aircraft's performance indicated a significant loss of thrust, leading to questions about possible dual-engine failure, which is extremely rare in commercial aviation [14][15][16] - Historical precedents exist for dual-engine failures due to external factors or human error, but mechanical failure of both engines is highly unlikely [15][17] - The incident raised concerns about the aircraft's maintenance and operational history, as passengers reported issues with the air conditioning and entertainment systems prior to the flight [20] Group 4: Implications for Boeing and Indian Airlines - The crash represents a significant setback for Boeing, which has been attempting to recover from previous quality control issues and incidents, including the 737 MAX crisis [22] - The National Transportation Safety Board (NTSB) is involved in the investigation, which will have major implications for both Boeing and Indian Airlines, particularly regarding accountability and future operations [25]