A fly-by-wire flight actuator control system, comprising: a) an operation control apparatus (11, 11a, 11b) that controls a device driven by an actuator (101, 101a, 101b) by generating a command signal for commanding operation of the device, b) wherein the operation control apparatus (11, 11a, 11b) includes a command generation portion that generates the command signal for commanding operation of the device, and a first monitoring portion, c) a communication bus; and d) an actuator control apparatus (12, 12a, 12b) interfacing with the operation control apparatus (11, 11a, 11b) via the communication bus to control the actuator (101, 101a, 101b) in accordance with the command signal received from the operation control apparatus (11, 11a, 11b); e) wherein the actuator control apparatus (12, 12a, 12b) includes a control portion that generates a control signal for controlling operation of the actuator (101, 101a, 101b) in accordance with the command signal received from the operation control apparatus (11, 11a, 11b), and a second monitoring portion that monitors an abnormality related to an actuation of the actuator control apparatus (12, 12a, 12b), wherein the second monitoring portion is to monitor a different type than an abnormality monitored by the first monitoring portion, f) wherein the first monitoring portion of the operation control apparatus (11, 11a, 11b) is configured to monitor an abnormality relating to an actuation of the control portion of the actuator control apparatus (12, 12a, 12b); g) wherein the first monitoring portion monitors an abnormality relating to actuation of the control portion by performing the same process as the control portion, and comparing a result of the process with a result of the process performed by the control portion, and; h) wherein the second monitoring portion monitors at least one of an abnormality of a power source for supplying power for actuating the actuator (101, 101a, 101b), and an abnormality of a current supplied via the actuator control apparatus (12, 12a, 12b) for actuating the actuator (101, 101a, 101b). a) an operation control apparatus (11, 11a, 11b) that controls a device driven by an actuator (101, 101a, 101b) by generating a command signal for commanding operation of the device, b) wherein the operation control apparatus (11, 11a, 11b) includes a command generation portion that generates the command signal for commanding operation of the device, and a first monitoring portion, c) a communication bus; and d) an actuator control apparatus (12, 12a, 12b) interfacing with the operation control apparatus (11, 11a, 11b) via the communication bus to control the actuator (101, 101a, 101b) in accordance with the command signal received from the operation control apparatus (11, 11a, 11b); e) wherein the actuator control apparatus (12, 12a, 12b) includes a control portion that generates a control signal for controlling operation of the actuator (101, 101a, 101b) in accordance with the command signal received from the operation control apparatus (11, 11a, 11b), and a second monitoring portion that monitors an abnormality related to an actuation of the actuator control apparatus (12, 12a, 12b), wherein the second monitoring portion is to monitor a different type than an abnormality monitored by the first monitoring portion, f) wherein the first monitoring portion of the operation control apparatus (11, 11a, 11b) is configured to monitor an abnormality relating to an actuation of the control portion of the actuator control apparatus (12, 12a, 12b); g) wherein the first monitoring portion monitors an abnormality relating to actuation of the control portion by performing the same process as the control portion, and comparing a result of the process with a result of the process performed by the control portion, and; h) wherein the second monitoring portion monitors at least one of an abnormality of a power source for supplying power for actuating the actuator (101, 101a, 101b), and an abnormality of a current supplied via the actuator control apparatus (12, 12a, 12b) for actuating the actuator (101, 101a, 101b).