ACS — CERTIFICATION STANDARD

PA.X.ATask A — Maneuvering with One Engine Inoperative (AMEL, AMES)

FAA-S-ACS-6C — Area of Operation X

Official ACS text — PA.X.A

ACS — CERTIFICATION STANDARD

References: FAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-25; FAA-P-8740-66; POH/AFM

Objective: To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with maneuvering with one engine inoperative. Note: See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.

Knowledge — The applicant demonstrates understanding of:

PA.X.A.K1 Factors affecting minimum controllable speed (VMC).

PA.X.A.K2 VMC (red line) and best single-engine rate of climb airspeed (VYSE) (blue line).

PA.X.A.K3 How to identify, verify, feather, and secure an inoperative engine.

PA.X.A.K4 Importance of drag reduction, including propeller feathering, gear and flap retraction, the manufacturer's recommended control input and its relation to zero sideslip.

PA.X.A.K5 Feathering, securing, unfeathering, and restarting.

Risk Management — The applicant is able to identify, assess, and mitigate risk associated with:

PA.X.A.R1 Potential engine failure during flight.

PA.X.A.R2 Collision hazards.

PA.X.A.R3 Configuring the airplane.

PA.X.A.R4 Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).

PA.X.A.R5 Distractions, task prioritization, loss of situational awareness, or disorientation.

Skills — The applicant exhibits the skill to:

PA.X.A.S1 Recognize an engine failure, maintain control, use manufacturer’s memory item procedures, and use appropriate emergency procedures.

PA.X.A.S2 Set the engine controls, identify and verify the inoperative engine, and feather the appropriate propeller.

PA.X.A.S3 Use flight controls in the proper combination as recommended by the manufacturer, or as required to maintain best performance, and trim as required.

PA.X.A.S4 Attempt to determine and resolve the reason for the engine failure.

PA.X.A.S5 Secure the inoperative engine and monitor the operating engine and make necessary adjustments.

PA.X.A.S6 Restart the inoperative engine using manufacturer’s restart procedures.

PA.X.A.S7 Maintain altitude ±100 feet or minimum sink rate if applicable, airspeed ±10 knots, and selected headings ±10°.

PA.X.A.S8 Complete the appropriate checklist(s). Private Pilot for Airplane Category ACS (FAA-S-ACS-6C) 59

Reproduced from FAA-S-ACS-6C, Change 1 (November 2023). Verify against the official document before relying on it.

Is this a regulation?

No — this is a certification standard, not a regulation.

Airman Certification Standards. The ACS defines what an applicant must know, consider and do to pass a practical test. It is a certification standard, not a regulation.

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