I used to skip pin checks until a 30 second test saved me $2k | Avionics Technicians

Diana Reed · 2026-08-25T09:00:04.210754+00:00

For years I trusted the printed wiring diagrams on older Airbus units and never verified continuity before install. Last month a CRM module came back DOA after a flight, and the fault trace showed a pin 23 that had pulled back inside the connector. A 10 minute bench check would have caught it, so now I run a simple resistance sweep on every harness before it goes in the rack. Has anyone else had a similar close call that turned them into a pin-by-pin believer?

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I used to skip pin checks until a 30 second test saved me $2k | Avionics Technicians - Babble Community