Aviation glossary · Parts, stock and tradingWhat is LRU?
Line Replaceable Unit
A component designed to be replaced quickly at the aircraft rather than repaired in place, typically avionics or a system module.
Why it matters
LRUs move often and across aircraft, which makes them the components whose traceability is most likely to break.
In AerSynx
Moving a component between aircraft carries its record with it instead of archiving one installation and opening another. Component Status →