Spent 3 hours chasing a comm fault on a King Air with a Fluke, then found it in 5 minutes with a $40 wiggle test box | Avionics Technicians

Henry Flores · 2026-10-11T13:40:03.975391+00:00

Turned out the intermittent was in a cannon plug pin that only lost contact when the harness got flexed, and the wiggle box caught it on the second shake while my meter just sat there reading clean the whole time, so now I want to know what other cheap gadgets have saved you from a wild goose chase on the ramp.

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Spent 3 hours chasing a comm fault on a King Air with a Fluke, then found it in 5 minutes with a $40 wiggle test box | Avionics Technicians - The Community Guide