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Study tools

Official standards and quick references for checkride prep. Always confirm against current FAA publications.

Airman Certification Standards

The standards your examiner grades against.

  • FAA-S-ACS-6C

    Private Pilot (Airplane)

    Preflight preparation, airport operations, takeoffs and landings, performance and ground reference maneuvers, slow flight and stalls, and emergency operations.

    Open PDF on FAA.gov ↗(opens in a new tab)
  • FAA-S-ACS-8C

    Instrument Rating (Airplane)

    IFR flight planning and clearances, holding, precision and non-precision approaches, missed approaches, and flying with a failed attitude indicator or heading indicator.

    Open PDF on FAA.gov ↗(opens in a new tab)
  • FAA-S-ACS-7B

    Commercial Pilot (Airplane)

    Chandelles, lazy eights, steep spirals, eights on pylons, power-off 180° accuracy approaches, and the rules for carrying passengers or property for hire.

    Open PDF on FAA.gov ↗(opens in a new tab)
  • FAA-S-ACS-25

    Flight Instructor (Airplane)

    Fundamentals of instructing, technical subject areas, and teaching each flight maneuver from the right seat. Find it in the FAA's full list of standards.

    Open on FAA.gov ↗(opens in a new tab)

Required inspections (AV1ATE)

Examiners often ask you to show airworthiness in the logbooks before you fly.

InspectionIntervalRegulation
AnnualEvery 12 calendar months14 CFR 91.409(a)
VOR check (IFR only)Within the preceding 30 days14 CFR 91.171
100-hourEvery 100 hours of time in service, when used for hire or flight instruction for hire14 CFR 91.409(b)
Altimeter and pitot-static (IFR)Every 24 calendar months14 CFR 91.411
TransponderEvery 24 calendar months14 CFR 91.413
ELTInspection every 12 calendar months; battery replaced after 1 hour of cumulative use or half its useful life14 CFR 91.207

Maneuver tolerances

Common ACS limits. Check the current ACS for your certificate.

ManeuverAltitudeAirspeedBank / headingCompletion
Steep turns (private)±100 ft±10 kt45° ±5°Roll out within ±10° of entry heading
Steep turns (commercial)±100 ft±10 kt50° ±5°Roll out within ±10° of entry heading
Slow flight±100 ft (private) · ±50 ft (commercial)+10 / −0 ktHeading ±10°; bank ±10° (private) · ±5° (commercial)—
Short-field landing—Approach speed +10 / −5 kt (private) · ±5 kt (commercial)On the centerlineTouch down within 200 ft (private) or 100 ft (commercial) past the chosen point
Precision approach (ILS)No more than ¾-scale glideslope deflection±10 ktNo more than ¾-scale localizer deflectionBegin the missed approach at DA/DH without visual references

These references are study aids, not a substitute for the current ACS, FARs, or your instructor.