Patent ID: 9688418
Date: 2017-06-27
CPC Classifications: B64C,B64D

Claim:
1. A method for determining a state of a component in a high lift system of an aircraft, the high lift system comprising a central power control unit for providing rotational power by means of a transmission shaft; and drive stations coupled with the power control unit and movable high lift surfaces; the method comprising the steps of: acquiring in an extended position in flight at least one first position of a single first position pick-off unit coupled with the component, which is mechanically coupled with one of the high lift surfaces, and which is coupled with one of the drive stations, acquiring on ground at least one second position of the single first position pick-off unit in the extended position, determining a deviation between a measure based on the first position and an associated measure based on the second position of the single first position pick-off unit between ground and flight, determining, whether the deviation exceeds a predetermined threshold, and generating a signal indicating an abnormal state of the component in case the deviation exceeds the predetermined threshold.