AA.II.A.K4aFAA-S-ACS-11A · Nov 2023Knowledge

a. Which items should be inspected

ACS element text (the applicant demonstrates understanding of)

Aircraft preflight inspection, including: a. Which items should be inspected

Bottom line

A person performing an inspection required by part 91 must perform it so as to determine whether the aircraft, or the portion(s) under inspection, meets all applicable airworthiness requirements. A person performing an annual or 100-hour inspection must use a checklist while performing the inspection.

FAA references

  1. 14 CFR 43.15 (Additional performance rules for inspections.) — eCFR current as of 2026-03-05
  2. 14 CFR 43.11 (Content, form, and disposition of records for inspections conducted under parts 91 and 125 and §§ 135.411(a)(1) and 135.419 of this chapter.) — eCFR current as of 2026-03-05
  3. 14 CFR 63.39 (Skill requirements.) — eCFR current as of 2026-10-08
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