Do not assume
Wizofoz In the DC-10 and A 300 accidents the crew had no choice. In many of the situations quoted for the use of single autoland there could be a choice which the crew needs to make with knowledge of all of the facts.
You make the assumption that the aircraft will behave in exactly the same way as the simulator. Very few training simulators have ‘real’ aircraft equipment, thus the system functions are replications of the autopilot hardware / software as well as the sensor inputs – rad alt, ILS, airspeed, attitude.
One post reports that trim-up is not available during aircraft single system operations, thus the flare performance is most unlikely to be the same even if it works. Without trim-up you may not have adequate protection against a ‘no-flare’ failure or low altitude autopilot disconnect.
In such situations with only one channel you might find yourself with fewer options than in a DC-10 or A 300.
I am more concerned about the underlying principle where pilots fail to distinguish between simulated and real aircraft capability. If pilots believe that they can do anything in the simulator - approved or not, then there is the risk of developing a Macho culture – I can do anything attitude, which spills over to normal operations.
The other concern is how easily individuals form absolute truth – the 737 ‘CAN’ … etc. CRM training should be teaching us not to rush to conclusions, seek all information to confirm the current understanding, and retain healthy scepticism of what you or others believe.
Don’t bet on anything in aviation.