A method of monitoring a cockpit of an aircraft includes receiving, by one or more controllers, an image depicting an operator manipulated input device located within the cockpit. The method can include determining, by the one or more controllers, an observed state of the operator manipulated input device. In particular, the observed state can be based on the image. The method can include determining, by the one or more controllers, a sensed state of the operator manipulated input device. In particular, the sensed state can be based on data from a sensor. The method can include determining, by the one or more controllers, a mismatch between the observed and sensed states of the operator manipulated input device.