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Pro tip: a cheap multimeter saved me from ordering a whole new autopilot computer
Had a G1000 system throwing a weird intermittent fault code on a King Air last month. The book said to replace the GIA 63W, which is a $15,000 part. Before I put in the order, I checked the 28V discrete input line with my old Fluke 87V. Found the voltage was dipping to 22V for a split second when we wiggled a wire bundle under the copilot's seat. It was just a chafed wire on a grounding stud. Has anyone else caught a big ticket item with just a basic continuity check?
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