The FAA-S-ACS-1, Aviation Mechanic General, Airframe, and Powerplant Airman Certification Standards (mechanic ACS) is the testing standard for mechanic written, oral, and practical tests.
The mechanic ACS is divided into 3 tests/sections (General, Airframe, and Powerplant) which list the knowledge, risk management, and skill elements that a mechanic applicant must know or demonstrate during the oral and or practical test.
The general test/section is required to be taken/passed to obtain either the airframe or powerplant rating.
The testing standard contains the following number of subject areas in each test area:
- General - 12
- Airframe - 15
- Powerplant - 13