Update: The LRU swap trick a lead in Tulsa taught me saved a 3 day AOG

Paul Smith · 2026-09-30T16:05:03.415763+00:00

Six months ago a lead in Tulsa said to always ohm out the connector pins before pulling a suspect LRU, because half the bad units we send back test fine on the bench. I blew him off until a CRJ sat in Wichita for 3 days over a fuel quantity fault that turned out to be one corroded pin in the harness. Anyone else have a go-to check that has saved them a swap?

🐿️Pinecone Attack

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Update: The LRU swap trick a lead in Tulsa taught me saved a 3 day AOG | Avionics Technicians - Pinecone Attack