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I finally stopped using the old school continuity test for every wire fault
For years, if a system had a bad connection, I'd just buzz out the whole harness with a multimeter. Last month on a Citation X, I spent 6 hours chasing a phantom ground on a nav radio that kept dropping. A guy from our Dallas base walked over, hooked up his Fluke 87V in millivolt drop mode, and found a 0.4 volt drop across a single pin in the D-sub in about 30 seconds. The crimp was slightly loose. Now I check voltage drop first on any intermittent issue. Has anyone else switched their main troubleshooting step for chasing bad connections?
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nancy8245d ago
My friend at a regional airline had a Cessna 208 with a landing light that kept flickering. He spent ages checking the switch and circuit breaker. Another tech showed him a tiny voltage drop across the firewall connector, turned out the terminal was just a bit green.
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