What type of repairs can a certified mechanic perform on propellers?

A certified mechanic has the authority to perform minor repairs and alterations to propellers, which typically encompass tasks such as replacing blade tips, adjusting pitch, or making superficial surface repairs. These actions are considered "minor" because they do not significantly alter the propeller's structure or function and can be executed safely and effectively by a mechanic with the appropriate training and certification.

While major repairs may require specialized knowledge and facilities that a mechanic working independently might not possess, minor repairs can be safely executed under the regulations set forth by aviation authorities. This framework ensures that propellers remain compliant with airworthiness standards without necessitating the oversight and resources of a certified repair station.

Repair stations are duly licensed entities equipped to handle major repairs and more complex alterations, which would go beyond the scope of a mechanic who focuses primarily on minor repairs. Thus, the ability to perform only minor repairs and alterations allows mechanics to contribute effectively to aircraft maintenance while adhering to regulatory guidelines.