What are the two ratings that can be issued to a mechanic certificate?

• A. Avionics and Structures
• B. Electrical and Instrument
• C. Airframe and Powerplant
• D. Helicopter and Glider

Answer: (C)

Mechanic certificates carry ratings that specify what areas a technician is authorized to work on. The two ratings that can be issued are Airframe and Powerplant. The Airframe rating covers maintenance on the aircraft’s structural components and airframe systems (structures, hydraulics, flight controls, landing gear, and related subsystems). The Powerplant rating covers maintenance on engines, propulsion, fuel and ignition systems, exhaust, and related engine components. A technician can hold either rating or both, enabling work throughout the aircraft. Other pairings aren’t official ratings for the mechanic certificate, since Avionics, Electrical and Instrument, or aircraft type categories like Helicopter and Glider aren’t the standard ratings tied to a mechanic certificate.