Where can the scope and details of the engine items to inspect during an annual or 100-hour inspection be found?

Where can the scope and details of the engine items to inspect during an annual or 100-hour inspection be found?

• A. 14 CFR Part 43, Appendix D.
• B. 14 CFR Part 91, Subpart E.
• C. The engine's maintenance manual.
• D. Type Certificate Data Sheet.

Answer: (A)

The items to inspect during an annual or 100-hour inspection are defined by the regulatory scope in 14 CFR Part 43 Appendix D. This appendix lists the specific engine-related inspection items and the level of work required for those inspections, providing the official checklist mechanics follow for the required periods. The engine’s maintenance manual may give detailed procedures for how to inspect and service each item, but the official list of what must be inspected comes from Part 43 Appendix D. The other sources don’t define the inspection scope: Part 91 Subpart E covers general maintenance rules; the maintenance manual is manufacturer-specific procedures; and the Type Certificate Data Sheet contains certification information, not inspection requirements.

The items to inspect during an annual or 100-hour inspection are defined by the regulatory scope in 14 CFR Part 43 Appendix D. This appendix lists the specific engine-related inspection items and the level of work required for those inspections, providing the official checklist mechanics follow for the required periods. The engine’s maintenance manual may give detailed procedures for how to inspect and service each item, but the official list of what must be inspected comes from Part 43 Appendix D. The other sources don’t define the inspection scope: Part 91 Subpart E covers general maintenance rules; the maintenance manual is manufacturer-specific procedures; and the Type Certificate Data Sheet contains certification information, not inspection requirements.