Final answer:
The limits of repair for aircraft turbine engine compressor blades are found in the engine maintenance manual or manufacturer's technical instructions, detailing specific guidelines for maintaining operational and safety standards.
Step-by-step explanation:
The limits of repair allowed for compressor blades of an aircraft turbine engine are typically found in the engine's maintenance manual or the manufacturer's technical instructions. These documents provide specific guidelines regarding the inspection, repair, and acceptance criteria for damaged compressor blades, ensuring they meet the engine's operational and safety standards. The instructions might include information such as the maximum allowable length and depth of nicks, dents, and scratches, as well as repair techniques and materials that can be used. Compressor blades are designed to precise aerodynamic specifications, and any deviation due to damage or repairs can significantly affect the performance and safety of the engine. As such, it is essential that any repairs are carried out within the prescribed limits. The guidelines are designed in accordance with regulations and safety standards, such as those set forth by aviation authorities like the Federal Aviation Administration (FAA) or the European Union Aviation Safety Agency (EASA).