LRU meaning in Space Science ?

Answer: What is Line Replaceable Unit mean?

A line-replaceable unit (LRU), lower line-replaceable unit (LLRU), line-replaceable component (LRC), or line-replaceable item (LRI) is a modular component of an airplane, ship or spacecraft (or any other manufactured device) that is designed to be replaced quickly at an operating location (1st line). The different lines (distances) are essential for logistics planning and operation. An LRU is usually a sealed unit such as a radio or other auxiliary equipment. LRUs are typically assigned logistics control numbers (LCNs) or work unit codes (WUCs) to manage logistics operations.

LRUs can improve maintenance operations, because they can be stocked and replaced quickly from distributed nearby on-site inventories (sometimes mobile storage), restoring the mobile systems to service, while the failed (unserviceable) LRU is undergoing complicated repair and overhaul actions in other support locations (lines). Because of their modularity, LRUs also can contribute reducing system costs and increase quality, by centralizing development across different models of vehicles.

LRUs are similar in nature to shop-replaceable units (SRUs), but rather than being component functions, represent complete functional units.

reference

Full Form	Category
Library Research Unit	Academic & Science
Lenoir Rhyne University	Academic & Science
Las Cruces (nm)	Airport Code
Less Ribbon Used	Business
Legislative & Regulatory Update	Community
Least Recently Used	Computing
Lowest Replaceable Unit	Electronics
Lets Run Unix	General
Line Replacement Unit	General
La Raza Unida	General
Line Replaceable Units	General
Lips Are Ugly	General
Low Rate Usage	General
Last Recently Used	General
Loi Relative aux	General
Land Rover Uruguay	General
Legislative Research Unit	Governmental
LALPUR UMRI	Indian Railway Station
Ley de Reforma Universitaria	International
Line Replacable Unit	Military and Defence
Logistics Review Unit	Military and Defence
Line (or Lowest) Replaceable Unit	Military and Defence
Las Cruces, New Mexico USA	Regional
Line Replaceable Unit	Space Science