印度航空坠机黑匣子录音曝光：飞行员互问“为何切断燃油?”

Core Viewpoint - The preliminary investigation report by the Indian Aircraft Accident Investigation Bureau reveals that the crash of the Air India Boeing 787-8 was caused by a simultaneous fuel supply cutoff to both engines shortly after takeoff, leading to an in-flight engine failure [1][10]. Group 1: Incident Details - The report indicates that within seconds of takeoff, the fuel switches for both engines were almost simultaneously switched from "on" to "off," resulting in a fuel supply interruption and subsequent engine failure [2]. - A conversation between the pilots was recorded, where one pilot questioned why the fuel supply was cut, and the other denied making such a change [2]. - The fuel supply was interrupted for approximately 10 seconds before the switches were turned back on, but by then, the aircraft could not regain sufficient power to stop its descent [2]. Group 2: Technical Analysis - Surveillance footage showed that the emergency energy ram air turbine activated immediately after takeoff, indicating a loss of power [4]. - The report confirmed that the flaps and landing gear were in the correct positions at the time of the crash, suggesting that these factors did not contribute to the incident [5]. - Aviation experts noted that each fuel supply switch is equipped with a locking mechanism to prevent accidental changes, implying that the likelihood of unintentional switch movement by the pilots is low [6][8]. Group 3: Context of the Incident - This incident marks the first fatal accident involving the Boeing 787 model, with over 270 casualties reported, including those on the ground [10]. - The investigation is being supported by teams from multiple countries, highlighting the international interest and concern regarding the safety of the Boeing 787 aircraft [10].