Boeing(US:BA) 券商中国·2025-07-12 02:36Core 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 an interruption in fuel supply to both engines shortly after takeoff, leading to an in-flight engine failure [1][4]. 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 was cut off, and the other denied having done so. Shortly after, a Mayday signal was issued [2]. - The duration of the fuel supply interruption was approximately 10 seconds, and the time interval between the closure of the fuel switches for both engines was about 1 second [2]. Group 2: Technical Analysis - Experts cited by The New York Times suggest that the likelihood of accidental movement of the fuel switches is low, as each switch is equipped with a locking mechanism to prevent unintended changes [3]. - To activate the fuel supply, the switch must be pulled out and moved to the "supply" position, which then locks automatically. Closing the fuel supply requires a similar action, indicating that accidental operation is unlikely [3]. Group 3: Incident Significance - This incident marks the first fatal accident involving the Boeing 787 model, with over 270 casualties reported, including those on the ground [4]. - The black boxes from the aircraft have been recovered, and multiple countries have sent teams to assist in the investigation [4].