Maybe, when they started thinking about a plan B, they were anyway already much too fast to use flaps? I guess that there is a max speed for flaps (maybe the c

Maybe, when they started thinking about a plan B, they were anyway already much too fast to use flaps? I guess that there is a max speed for flaps (maybe the computer even actively refuses to extend them if the airspeed is higher than X to avoid that wings are destroyed).