What type of inspection is required for Part 135 aircraft with 9 seats or less?

For Part 135 aircraft with 9 seats or less, the inspections are required to adhere to the standards outlined in Section 91.409. This section of the Federal Aviation Regulations (FARs) details the requirements for the maintenance and inspection of aircraft used in certain operations, including those operated under Part 135.

Section 91.409 mandates regular inspections and provides a framework for the required frequency and scope of these inspections to ensure that the aircraft meets safety and airworthiness standards. This is vital for maintaining the operational integrity of aircraft conducting commercial operations, making it a critical regulatory guideline.

The other options do not apply to the specific inspection requirements set forth for Part 135 operations with a limited passenger capacity. The operations maintenance manual specifications may provide guidance but do not supersede regulatory requirements. Appendix D of Part 43 is also relevant but is more specific to general aviation rather than tailored to the Part 135 environment. The assertion that no specific inspection is required is incorrect because all aircraft under Part 135 must meet defined inspection criteria for safety and compliance.