Knowledge · Foundations

How Line Maintenance Works

A clear overview of line maintenance roles, coordination, and how providers integrate with airline operations.

Published 2026-05-298 min read

Line maintenance is the maintenance performed on aircraft at the gate, on the ramp, or in a RON window — everything short of base or heavy maintenance. It is the connective tissue between aircraft and operations.

Who's Involved

A typical line maintenance event involves the certified technician, the airline's Maintenance Operations Control, ramp operations, the flight crew, and frequently parts and engineering support.

Why Coordination Matters

Most operational delays attributed to maintenance are not technical — they are coordination gaps. A provider's value is largely a function of how well it integrates into the airline's operational rhythm.