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GCU Analyser

GCU Analyser

*Before going into specific Symptoms which will result in operational “squawks” it may be productive to perform a static test routine that is “quick and easy” and will result in localizing some problems without starting the engine. Set-up requirements; remove the aircraft connector from the GCU, plug the aircraft connector into the breakout harness but do not connect the breakout harness to the GCU. Check with the ohmmeter from designated test points on the TE02 to various other designated points in the aircraft. Bear in mind that the ohmmeter test leads will usually have a small resistance, say .1 to .4 ohms, so before starting, short the probes together and get this reading. Subtract this reading from all point to point readings.

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