Importance

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Abstract

The subject matter of this specification can be embodied in, among other things, method for testing operation of a thrust reverser actuator lock includes determining, by a controller, that an actuator output of a controllable actuator is at a predetermined first position, locking, by the controller, an actuator lock configured to prevent movement of the actuator output of an actuator away from the predetermined first position, initiating, by the controller, actuation of the actuator output away from the predetermined first position, determining, by the controller based on a position feedback sensor, a second position of the actuator output, determining, by the controller, a nominal condition of the actuator lock based on determining that the second position is within a predetermined threshold distance from the predetermined first position of the actuator output, and providing, by the controller and based on the determined nominal condition, a signal indicative of the nominal condition.

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First Claim