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AI.V.F — Before Takeoff Check

AI.V.F for the Flight Instructor Airplane ACS: official objective, references, and 13 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.V.F official ACS context
Certificate or ratingFlight Instructor
Aircraft categoryAirplane
Area of operationArea of Operation V. Preflight Procedures
TaskTask F. Before Takeoff Check
Task code prefixAI.V.F
Official referencesFAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-9, FAA-H-8083-23, FAA-H-8083-25; 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 before takeoff checks, 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.
  • V identifies Preflight Procedures, the Area of Operation.
  • F identifies Before Takeoff Check, 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.V.F.K1Purpose of before takeoff checklist items, including:Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.V.F.K1aa. Reasons for checking each itemExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.V.F.K1bb. Detecting malfunctionsExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
AI.V.F.K1cc. Ensuring the aircraft is in safe operating condition as recommended by the manufacturerExplain 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.V.F.R1Division of attention while conducting before takeoff checks.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.V.F.R2Unexpected runway changes by air traffic control (ATC).Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.V.F.R3Wake turbulence.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
AI.V.F.R4Potential powerplant failure during takeoff or other malfunction considering operational factors such as airplane characteristics, runway/takeoff path length, surface conditions, environmental conditions, and obstructions.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.V.F.S1Review takeoff performance.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.V.F.S2Complete 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.V.F.S3Position the airplane appropriately considering wind direction and the presence of any aircraft, vessels, or buildings as applicable.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.V.F.S4Divide attention inside and outside the flight deck.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
AI.V.F.S5Verify that engine parameters and airplane configuration are suitable.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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