FAA Aviation Mechanic General (AMG)Regulations, Records and Human FactorsHard
During an annual inspection, a mechanic wants to verify that every required inspection area has been covered. Which document defines the scope of items that must be inspected under 14 CFR 91.409 for an annual or 100-hour inspection?
- A14 CFR Part 43, Appendix D
- B14 CFR Part 91, Subpart E
- CThe aircraft's Type Certificate Data Sheet
- D14 CFR Part 43, Appendix A
Show answer & explanationAnswer & explanation
Correct answer: A. 14 CFR Part 43, Appendix D
14 CFR 43 Appendix D lists the specific scope and detail of items (such as fuselage, cabin, engine, landing gear, etc.) that must be included in an annual and 100-hour inspection as referenced by 91.409.
Why the other options are wrong
- B. Part 91 Subpart E covers maintenance requirements generally but does not itself list the specific inspection items; it references Appendix D.
- C. The TCDS lists approved configurations, engines, and limits, not inspection checklist items.
- D. Appendix A to Part 43 defines major/minor alterations and repairs and preventive maintenance items, not inspection scope.
91.409 Annual/100-Hour Inspection Scope
14 CFR 91.409 requires annual and 100-hour inspections to be performed in accordance with the scope and detail specified in 14 CFR Part 43, Appendix D.
- Appendix D lists items like fuselage/hull, cabin/cockpit, engine, landing gear, wing/center section, and more
- Annual inspection required every 12 calendar months for most Part 91 aircraft
- 100-hour inspection required for aircraft used for hire or flight instruction
Memory trick: 'Appendix D = Detail' for what must be checked.