Originally Posted by
gearlever
Advancing any throttle and flaps in ldg position would mean an unsafe T/O alert.
Wouldn't it?
Yes:
Takeoff configuration warning is armed when the airplane is on the ground and either or both forward thrust levers are advanced for takeoff. Takeoff configuration warning activates if:
• trailing edge flaps are not in the flaps 1 through 25 takeoff range.
If you watch the simulator reconstruction of the event (posted above), you can see that after touchdown, the PF removes his hand from the Right Thrust Lever to deploy the Left Thrust Reversor (the Right Thrust Reversor is inop). Because TOGA had been inadvertently selected and the Autothrottle was still engaged, as soon as the PF’s hand came off the Right TL, the Right TL advanced to TOGA Thrust and the Takeoff Configuration Warning activated.