Which regulation governs maintenance and inspection practices for air carriers under Part 135?

The regulation that governs maintenance and inspection practices for air carriers operating under Part 135 is 14 CFR Part 135. This part specifically outlines the requirements for the operation of commuter and on-demand air carriers, including the necessary standards for maintenance, operations, and inspections to ensure safety and airworthiness of the aircraft involved in these operations.

Part 135 includes provisions that detail the qualifications for maintenance personnel, the processes for conducting inspections, and the rules regarding the maintenance records that must be kept. This regulation is crucial for maintaining a high standard of safety in operations involving smaller aircraft and ensuring that carriers comply with federal requirements.

The other regulations mentioned, while they have their own specific applications, do not directly govern the maintenance practices for Part 135 air carriers. Understanding the distinctions between these regulations is key for aviation professionals involved in ensuring compliance with the relevant standards for the air carrier operations.