A system for controlling a flight control surface, wherein said system comprises: a first electromechanical actuator "EMA" and characterized by further comprising a second EMA, each of which are connected to said flight control surface; and wherein each EMA (210, 220) is configured to be arranged in, and switched between, three modes; said three modes comprising: an active mode, a stand-by mode and a blocked or anti-extension mode and wherein said first EMA comprises a first Motor Drive Electronics "MDE" and a first solenoid, and wherein said second EMA comprises a second MDE and a second solenoid; T wherein said second MDE of said second EMA is connected to said first solenoid of said first EMA; wherein said first MDE of said first EMA is connected to said second solenoid of said second EMA; and wherein the system is configured to be operable in and switchable between: an active/active mode, wherein both said first and second EMAs (210, are in the active mode; an active/stand-by mode wherein the first EMA is in the active mode and the second EMA is in the stand-by mode; and a blocked/blocked mode or anti-extension/anti-extension mode, wherein both EMAs (210, 220) are in a blocked or anti-extension mode, and further wherein, in the event of failure of the first EMA, the second EMA is configured to unlock the first EMA by energizing the solenoid of the first EMA, thereby switching said system into said active/standby mode. a first electromechanical actuator "EMA" and characterized by further comprising a second EMA, each of which are connected to said flight control surface; and wherein each EMA (210, 220) is configured to be arranged in, and switched between, three modes; said three modes comprising: an active mode, a stand-by mode and a blocked or anti-extension mode and wherein said first EMA comprises a first Motor Drive Electronics "MDE" and a first solenoid, and wherein said second EMA comprises a second MDE and a second solenoid; T wherein said second MDE of said second EMA is connected to said first solenoid of said first EMA; wherein said first MDE of said first EMA is connected to said second solenoid of said second EMA; and wherein the system is configured to be operable in and switchable between: an active/active mode, wherein both said first and second EMAs (210, are in the active mode; an active/stand-by mode wherein the first EMA is in the active mode and the second EMA is in the stand-by mode; and a blocked/blocked mode or anti-extension/anti-extension mode, wherein both EMAs (210, 220) are in a blocked or anti-extension mode, and further wherein, in the event of failure of the first EMA, the second EMA is configured to unlock the first EMA by energizing the solenoid of the first EMA, thereby switching said system into said active/standby mode. an active mode, a stand-by mode and a blocked or anti-extension mode and wherein said first EMA comprises a first Motor Drive Electronics "MDE" and a first solenoid, and wherein said second EMA comprises a second MDE and a second solenoid; T wherein said second MDE of said second EMA is connected to said first solenoid of said first EMA; wherein said first MDE of said first EMA is connected to said second solenoid of said second EMA; and wherein the system is configured to be operable in and switchable between: an active/active mode, wherein both said first and second EMAs (210, are in the active mode; an active/stand-by mode wherein the first EMA is in the active mode and the second EMA is in the stand-by mode; and a blocked/blocked mode or anti-extension/anti-extension mode, wherein both EMAs (210, 220) are in a blocked or anti-extension mode, and further wherein, in the event of failure of the first EMA, the second EMA is configured to unlock the first EMA by energizing the solenoid of the first EMA, thereby switching said system into said active/standby mode. an active/active mode, wherein both said first and second EMAs (210, are in the active mode; an active/stand-by mode wherein the first EMA is in the active mode and the second EMA is in the stand-by mode; and a blocked/blocked mode or anti-extension/anti-extension mode, wherein both EMAs (210, 220) are in a blocked or anti-extension mode, and further wherein, in the event of failure of the first EMA, the second EMA is configured to unlock the first EMA by energizing the solenoid of the first EMA, thereby switching said system into said active/standby mode.