What would be considered an example of maintenance work completed on the line?

Question

Quizplus · Accepted Answer

LRU replacement (Line Replaceable Unit) is a typical maintenance task completed on an aircraft. It involves replacing faulty or worn-out components in the aircraft systems such as avionics, navigation, or communication, among others. The replacement is done on-site, on the line (where the aircraft is parked), hence the name "line replaceable." Cabin painting (B) and reconfiguration (C) are part of the aircraft's interior design and aesthetic; they are not maintenance tasks. Installation of collision avoidance systems (D), also known as TCAS (Traffic Collision Avoidance Systems), is not necessarily a maintenance task; it could be an upgrade or modification to the aircraft's systems. Therefore, the best choice is A.

What Would Be Considered an Example of Maintenance Work Completed