I think that this thread is a perfect example of why large modern aircraft require a type rating that is only awarded after very thorough, detailed and specific training on that make and model of aircraft. At some point the powers that be decided that these aircraft were far too sophisticated and technically complicated to allow anyone to fly them just by studying the Aircraft Flight Manual. The original equipment manufacturer (OEM), along with the guidance of the manufacturing country's aviation authority, creates and approves the type rating and SIC training curriculum. So, if the training facility is instructing pilots to turn a certain system off during a certain phase of flight, then that is the correct, approved, safest and obviously the most accepted practice for that aircraft. In addition, the pilot in command is the final authority as to the safe operation of the aircraft. At the risk of stepping on any toes, it begs the question of whether a certain contributor to this thread has ever acquired a type rating on any aircraft...
