What is the document signed by an authorized representative of an approved maintenance organization after maintenance has been performed?

The document signed by an authorized representative of an approved maintenance organization after maintenance has been performed is called the Return to Service. This document signifies that the maintenance organization has completed the required work and that the aircraft or component is safe and fit for operation.

This process is crucial in aviation as it ensures that all maintenance activities have been performed in compliance with relevant standards and regulations. The Return to Service effectively serves as a formal acknowledgment that the work has been inspected and approved, marking the aircraft's readiness for flight.

While other documents such as the Certificate of Airworthiness confirm that an aircraft meets safety standards for flight, they are typically issued after a thorough evaluation of the aircraft as a whole, rather than following a specific maintenance task. The Maintenance Release and AMO Certificate also play significant roles in the maintenance process but do not serve the same function as the Return to Service, which specifically addresses the completion and approval of maintenance activities on an individual aircraft or component.