Airman Certification Standards
ACS IR.VII.C
Area VII, Task C
Knowledge
Instrument approach procedures with one engine inoperative.
Risk Management
Potential engine failure during approach and landing.
Configuring the airplane.
Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT). 22
Distractions, task prioritization, loss of situational awareness, or disorientation.
Performing a go-around/rejected landing with an engine failure.
Skill
Promptly recognize an engine failure and maintain positive aircraft control.
Set the engine controls, reduce drag, identify and verify the inoperative engine, and simulate feathering of the propeller on the inoperative engine (evaluator should then establish zero thrust on the inoperative engine).
Use flight controls in the proper combination as recommended by the manufacturer, or as required to maintain best performance, and trim as required.
Follow the manufacturer’s recommended emergency procedures and complete the appropriate checklist.
Monitor the operating engine and aircraft systems and make adjustments as necessary.
Request and follow an actual or a simulated air traffic control (ATC) clearance for an instrument approach.
Maintain altitude ±100 feet or minimum sink rate if applicable, airspeed ±10 knots, and selected heading ±10°.
Establish a rate of descent that ensures arrival at the minimum descent altitude (MDA) or decision altitude (DA)/decision height (DH) with the airplane in a position from which a descent to a landing on the intended runway can be made, either straight in or circling as appropriate.
On final approach segment, maintain vertical (as applicable) and lateral guidance within ¾-scale deflection.
Maintain control and fly within the aircraft’s operating limitations.
Comply with the published criteria for the aircraft approach category if circling.
Execute a landing.
Complete the appropriate checklist(s).
Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.
Retrieved from ecfr.gov on July 17, 2026.