line replaceable unit

LRU Also known as. line-replaceable unit (LRU). lower line-replaceable unit(LLRU). line-replaceable component (LRC).line-replaceable item (LRI). Definition An LRU is an essential support item which is removed and replaced at the field level to restore the end item to an operational ready condition. Conversely, a non-LRU is a part, component, or assembly used in the repair of an … Read more