@Zozaf Kerman id still not blame boeing or the aircraft. An aircraft such as the 787 is an amalgamation of many manufacturers in a cohesive whole. For example take the engines on a 787-9. You have the following options: Rolls-Royce Trent 1000-A2, 1000-J2, 1000-K2, General Electric GEnx-1B74, -1B75P2. You will note these are not strictly Boeing power plants. Neither Boeing nor Airbus manufacture engines. They buy them from Rolls Royce, GE, and Pratt and Whitney. Similarly the autopilot systems Honeywell and Collins Aerospace are used on both Boeing and Airbus. Similarly both companies use the same companies for their radios. The newer MAX series 737s share similar CFM Leap engines. As to the warning that your flight experienced without knowing specifics I will say the Captain was 100% correct to reject takeoff.
I fly study level 737-700, 737-800, and 777-300ER aircraft in MSFS. I have had cautions pop up during taxi and takeoff roll that have triggered rejects. The caution? An open door. All doors were confirmed closed and armed but my aircraft popped the caution. I do not know what triggered it but I rejected. Any number of things can trigger innocuous cautions. Its not just a boeing specific issue mind you. Airbus experiences it too but people love to hate boeing right now.
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