What type of report is primarily used to document the completion of maintenance?

The Maintenance Completion Report is specifically designed to document the details surrounding the completion of maintenance tasks. This report serves as an official record that maintenance has been performed, outlining the work done, the personnel involved, and any relevant observations or issues encountered during the maintenance process. It provides accountability and ensures that maintenance activities are tracked and verified in accordance with regulations and standards.

In contrast, other reports such as the Operational Readiness Report focus on the overall readiness state of equipment and systems, while the Maintenance Action Report deals with logs of maintenance actions taken, which can include but is not limited to completed maintenance. The Technical Directive Report addresses instructions related to technical modifications or changes to equipment but does not primarily focus on the documentation of maintenance completions. Therefore, the Maintenance Completion Report is the most suitable choice as it directly aligns with the requirement to document the completion of maintenance tasks.