哇,您寫了怎麼多,通常只有在航空界工作的人才會如此關注此事。
手上沒有787的系統說明文件,還好現在有AI,只好求助Copilot。
下面是Copilot的回覆,供您參考,有錯的話,請怪Copilot。
1.有關Air/Ground Mode的判斷:
"To determine whether the aircraft is truly on the ground, the 787 uses a multi-source air/ground sensing system:
• Weight-on-Wheels (WoW) sensors on the main landing gear
• Radio Altimeters
• Possibly inertial data or other logic inputs
The system is designed to be robust and conservative—if there's any ambiguity,
it defaults to “air” mode to avoid accidental engine shutdowns during flight."
再加上RAT的放出佐證,不要懷疑飛機訊息是AIR Mode。
(RAT只會在AIR Mode下才會被自動放出,除非機師手動將其放出。)
2.TCMA的啟動條件,除了飛機需要on the ground外,還需:
• Detect thrust lever mismatch (idle lever, high engine output)
所以,Throttle置於Takeoff level位置,TCMA是不會被啟動。
這點YT Pilot們都沒有特別提到,而且初步調查報告也沒有提到TCMA,所以,此事件應該與TCMA無關。
至於Fuel Control Switch,有空再說明我的看法。
“Timestamps Just DON'T Add Up" Air India Crash With Captain Steeeve + Boeing Whistleblower"
https://www.youtube.com/watch?v=sgy8YfzULzM