Patent ID: 8593270
Filing Date: 2013-11-26
Classification: G01R

Abstract:
1. Test arrangement for testing signal lines of a flight control system for a trimmable horizontal stabilizer motor of an aircraft, the flight control system including at least one relay inserted into a corresponding relay socket, the test arrangement comprising: a simulation system which during ground tests of the aircraft provides a control signal to the signal lines of the flight control system to be tested so as to simulate a predefined flight situation, and a tester including at least one test-relay, wherein the test relay is configured to be inserted into a relay socket of the flight control system to connect the test-relay to the relay socket in place of the relay of the flight control system, when the signal lines of the flight control system are to be tested, and a first indicator as well as a second indicator being electrically connected to the at least one test-relay, wherein the first indicator configured to indicate whether a voltage being applied to the at least one test-relay in response to a control signal provided by the simulation system is equal to or larger than a predetermined voltage, and the second indicator is configured to indicate whether the voltage is less than the predetermined voltage.