Which category is allowed to sign a release to service after overhaul?

The designation of a Base Maintenance Certifying Engineer is specifically responsible for signing off on a release to service after an overhaul. This individual is trained and authorized to ensure that all maintenance work, especially major overhauls, has been completed in accordance with regulatory standards and procedures.

These engineers perform thorough inspections and assessments of aircraft following maintenance activities, ensuring that all systems are functioning properly and that the aircraft is in a condition for safe service. Their position indicates a high level of responsibility and expertise, reflecting their training and the regulatory requirements that govern aircraft maintenance.

In contrast, other roles like Line Maintenance Certifying Technicians and Line Maintenance Certifying Mechanics may handle less extensive maintenance tasks and may not have the authority to oversee or sign off on major overhauls. As a result, they operate within a different scope of maintenance activities, thus differentiating their capabilities compared to those of a Base Maintenance Certifying Engineer.