METHOD FOR DETERMINING A STATE OF A COMPONENT IN A HIGH LIFT SYSTEM OF AN AIRCRAFT, HIGH LIFT SYSTEM OF AN AIRCRAFT AND AIRCRAFT HAVING SUCH A HIGH LIFT SYSTEM

摘要

A method for determining a state of a component in a high lift system (2) of an aircraft is proposed, the high lift system (2) comprising a central power control unit (4) for providing rotational power by means of a transmission shaft (8, 10); and drive stations (12) coupled with the power control unit (4) and movable high lift surfaces (18); the method comprising the steps of acquiring in an extended position in flight at least one first position of a first position pick-off unit (20) coupled with the component, which is mechanically coupled with one of the high lift surfaces (18), and which is coupled with one of the drive stations (12); acquiring in flight a second position of a second position pick-off unit (20) arranged in or at the central power control (4) unit in the extended position; determining a deviation between a first measure based on the first position and a corresponding second measure based on the second position in the extended position; 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.