Which items must be included in an engine 100-hour inspection?

The requirement to include the scope and detail specified in CFR Part 43 Appendix D during an engine 100-hour inspection is crucial to ensure a comprehensive evaluation of the aircraft engine's condition. This appendix outlines various components and systems that must be inspected to maintain airworthiness and safety standards.

Including the items described in this regulatory framework guarantees that significant areas of inspection are not overlooked. The 100-hour inspection is intended for aircraft that are used for hire and therefore requires a more thorough examination to verify that they are in a condition for safe operation.

While operational checks, manufacturers’ checklists, and visual inspections are important parts of engine maintenance, relying solely on these aspects could result in missing critical inspection items outlined in the CFR. Thus, adherence to CFR Part 43 Appendix D not only fulfills regulatory requirements, but it also ensures a more holistic approach to engine safety and reliability.