I just came out of the simulator and in one of the failures we trained to reduce the TLs to land, but there is a malfuntion in the TLA(1) sensor and the computer believes that the pilot did not reduce the TLs and doesn´t warn you of nothing.
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We trained this in the simulator and in this situation we have to cut the motor immediatelly, but there is no alarm or proper time to identify and react!!!
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And worse yet the computer orders the motor to accelerate for TOGA(2). Cancels the spoilers and auto-brakes because it believes that the airplane is still flying even though we already landed and are trying to brake the plane. You look at the TL and it is there on Idle.
There are a few mechancial faults as well in every airplane that if encountered at the wrong time are certain "gotchas' since the pilot can not be expected to react quick enough to overcome them. They are simply accomodated as part of the general risk equation and minimized to a practical extent.l