What is a live in maintenance test pilot?

A Live In Maintenance Test Pilot is a specialized pilot who resides on-site at a facility, such as an airbase or manufacturing plant, and is responsible for testing aircraft after maintenance or repair work. Their primary role is to ensure that all systems and components function correctly and safely before an aircraft is returned to operational service. They work closely with maintenance teams to identify and troubleshoot any issues that arise during test flights. This position requires advanced piloting skills, in-depth technical knowledge of aircraft systems, and a strong focus on safety protocols.