A continuing concern is how many posters profess to understand the system operation; TOGA is not prevented by wheel touchdown, etc, instead the logic involves rad alt and time.
Many operators in previous threads declared their poor knowledge of the TOGA logic, or even whether the information existed in their manuals. What hope of pilots being able recall the need to change procedures in a rare and obscure situation, particularly when it is not even recalled from the comfort of the arm chair.
A changeover point of 2 sec below 5 ft to a designer might be reasonable approximating to being on the ground (without having to involve squat switches, etc, etc), yet the most likely situation where the aircraft still airborne after 2 sec is a long floating flare as in this case, just when a distance alert and GA are required. But the TOGA system has changed its mode of operation without annunciation.
And some forgotten points in a previous thread:
http://www.pprune.org/tech-log/58256...ml#post9464755
PM, CB, not that the tp community needs defending, but it may help the wider audience if alternative views of the design, development, and certification processes were researched.
Much of the success of our industry stem from these activities, as it does from operational feedback and learning from previous events.