Line maintenance refers to the upkeep of aircraft while they are still in operation and mostly ready to fly. This type of maintenance usually involves straightforward tasks, like replacing parts known as Line Replaceable Units (LRUs). A significant portion of line maintenance includes routine in-service inspections and daily checks, which follow pre-established schedules. These inspections help ensure that the aircraft remains safe and efficient for use. By focusing on these essential tasks, line maintenance plays a crucial role in the overall reliability of aviation operations.
