Airman Certification Standards
ACS CA.I.G
Operation of Systems
Knowledge
Airplane systems, including:
a. Primary flight controls
b. Secondary flight controls
c. Powerplant and propeller
d. Landing gear
e. Fuel, oil, and hydraulic
f. Electrical
h. Pitot-static, vacuum/pressure, and associated flight instruments
i. Environmental
j. Deicing and anti-icing
k. Water rudders (ASES, AMES)
l. Oxygen system
Indications of and procedures for managing system abnormalities or failures.
Risk Management
Detection of system malfunctions or failures.
Management of a system failure.
Monitoring and management of automated systems.
Skill
Operate at least three of the systems listed in K1a through K1l appropriately.
Complete the appropriate checklist(s). 8
Retrieved from ecfr.gov on July 17, 2026.