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AI.XII.G — Approach and Landing with an Inoperative Engine (Simulated)(AMEL, AMES)

AI.XII.G for the Flight Instructor Airplane ACS: official objective, references, and 22 exact knowledge, risk-management, and skill descriptions.

FAA-S-ACS-25, November 2023. This study page does not replace the current FAA publication or an examiner's plan of action.

Official task context

AI.XII.G official ACS context
Certificate or ratingFlight Instructor
Aircraft categoryAirplane
Area of operationArea of Operation XII. Emergency Operations
TaskTask G. Approach and Landing with an Inoperative Engine (Simulated)(AMEL, AMES)
Task code prefixAI.XII.G
Official referencesFAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-9, FAA-H-8083-25; FAA-P-8740-66; POH/AFM
FAA documentFAA-S-ACS-25 — Flight Instructor for Airplane Category Airman Certification Standards
FAA source libraryOpen the official ACS library

Official task objective

To determine the applicant understands approach and landing with an inoperative engine, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

What the ACS code means

  • AI identifies the ACS standard family used for this Flight Instructor Airplane document.
  • XII identifies Emergency Operations, the Area of Operation.
  • G identifies Approach and Landing with an Inoperative Engine (Simulated)(AMEL, AMES), the Task within that Area.
  • K, R, and S identify knowledge, risk-management, and skill elements. The number selects the item; a trailing lowercase letter identifies a listed sub-element.

Knowledge elements

Official ACS knowledge items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
AI.XII.G.K1Factors affecting minimum controllable speed (VMC).Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.XII.G.K2VMC (red line) and best single-engine rate of climb airspeed (VYSE) (blue line).Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.XII.G.K3How to identify, verify, feather, and secure an inoperative engine.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.XII.G.K4Importance of drag reduction, including propeller feathering, gear and flap retraction, the manufacturer’s recommended control input and its relation to zero sideslip.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.XII.G.K5Applicant responsibilities during simulated feathering.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.XII.G.K6Common errors related to this Task.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.

Risk management elements

Official ACS risk management items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
AI.XII.G.R1Potential engine failure after in flight or during an approach.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.XII.G.R2Collision hazards.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.XII.G.R3Configuring the airplane.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.XII.G.R4Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.XII.G.R5Distractions, task prioritization, loss of situational awareness, or disorientation.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.XII.G.R6Possible single-engine go-around.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.

Skills elements

Official ACS skills items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
AI.XII.G.S1Promptly recognize an engine failure and maintain positive aircraft control.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S2Set 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).Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S3Follow the manufacturer’s recommended emergency procedures and complete the appropriate checklist.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S4Monitor the operating engine and aircraft systems and make adjustments as necessary.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S5Maintain the manufacturer's recommended approach airspeed ±5 knots in the landing configuration with a stabilized approach, until landing is assured.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S6Make smooth, timely, and correct control application before, during, and after touchdown.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S7Touch down on the first one-third of available runway/landing surface, with no drift, and the airplane’s longitudinal axis aligned with and over the runway center or landing path.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S8Maintain directional control and appropriate crosswind correction throughout the approach and landing.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S9Complete the appropriate checklist(s).Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.XII.G.S10Analyze and correct common errors related to this Task.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.

Difficulty data

Difficulty calibration is ongoing for this Task. A difficulty estimate is published only with a sufficiently large, privacy-preserving first directly recorded assessment sample. Any observed difficulty comes from Checkride AI mock-oral practice assessments and is a practice-data proxy, not an FAA practical-test pass or fail rate.

Difficulty calibration remains ongoing until an item clears the private reporting threshold. Percentages, when available, describe the share who needed review on their first directly recorded assessment. Underlying sample sizes are never published, and historical final states are not backfilled into this measure.

Official task notes

  • See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.

How to use this in a mock oral

A mock examiner can ask you to explain the published elements, apply them to the configured aircraft and airport scenario, identify risks, and defend a decision. The prompts are practice scenarios; they are not claimed to be actual FAA examiner scripts or a prediction of the questions you will receive.

Practice in a mock oral

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