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IL.XIII.D — Turns to Headings

IL.XIII.D for the Flight Instructor Powered Lift ACS: official objective, references, and 16 exact knowledge, risk-management, and skill descriptions.

FAA-S-ACS-27, November 2023. This study page does not replace the current FAA publication or an examiner's plan of action.

Official task context

IL.XIII.D official ACS context
Certificate or ratingFlight Instructor
Aircraft categoryPowered Lift
Area of operationArea of Operation XIII. Basic Instrument Maneuvers
TaskTask D. Turns to Headings
Task code prefixIL.XIII.D
Official referencesFAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-16, FAA-H-8083-25
FAA documentFAA-S-ACS-27 — Flight Instructor for Powered-Lift Category Airman Certification Standards
FAA source libraryOpen the official ACS library

Official task objective

To determine the applicant understands attitude instrument flying during turns to headings, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction, solely by reference to instruments.

What the ACS code means

  • IL identifies the ACS standard family used for this Flight Instructor Powered Lift document.
  • XIII identifies Basic Instrument Maneuvers, the Area of Operation.
  • D identifies Turns to Headings, 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
IL.XIII.D.K1Flight instruments as they relate to:Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
IL.XIII.D.K1aa. Instrument limitations and potential errorsExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
IL.XIII.D.K1bb. Indication of the aircraft attitudeExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
IL.XIII.D.K1cc. Function and operationExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
IL.XIII.D.K1dd. Proper instrument cross-check techniquesExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
IL.XIII.D.K2Common 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
IL.XIII.D.R1Instrument flying hazards, including failure to maintain visual flight rules (VFR), spatial disorientation, loss of control, fatigue, stress, and emergency off airport landings.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R2When to seek assistance or declare an emergency in a deteriorating situation.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R3Collision hazards.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R4Distractions, 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.
IL.XIII.D.R5Fixation and omission.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R6Instrument Interpretation.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R7Control application solely by reference to instruments.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
IL.XIII.D.R8Trimming the aircraft.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
IL.XIII.D.S1Turns to headings, maintain altitude ±100 feet, maintain a standard rate turn, roll out on the assigned heading ±10°, and maintain airspeed ±10 knots.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
IL.XIII.D.S2Analyze 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.

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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