Nubs...don’t think anyone said anything has ‘gone bad’...nor have I ever seen ‘flying rats.’ All C-17’s don’t get the same software upgrades/avionics/electrical upgrades at the same evolution in time. There are many, many miles of wiring in these air busses...wiring gets old, loses impedance/ohms, components have a very strict shelf life, etc, etc. When systems/electronics are upgraded and they don’t produce everything within very specific ranges...now it’s hunting time. You have to test the previous baseline to ensure the upgrades are good when they’re installed. It’s really no different than why you’d change plug wires in a vehicle...this is just a very complicated vehicle...but a vehicle nonetheless.
