Where can the airworthiness standards for type certificates for small airplanes with nine or less passenger seats be found?

The airworthiness standards for type certificates for small airplanes designed to carry nine or fewer passenger seats are detailed in the Federal Aviation Regulations, specifically in Part 23. This part outlines the safety and design standards essential for ensuring the airworthiness of small aircraft, covering various aspects such as performance, handling qualities, and structural integrity.

Part 23 has been developed to include modern aviation practices and technological advances, effectively catering to the small aircraft sector. It is crucial for ensuring that these airplanes meet specific safety criteria before they are allowed to operate commercially or privately.

The other options provided do not specifically address the airworthiness standards relevant to type certificates for small airplanes. GACA Regulations may pertain more broadly to aviation regulations under the General Authority of Civil Aviation, but they do not supersede the specific details outlined in the FAA’s Part 23 for small aircraft. Similarly, the Civil Aeronautics Act provides a framework for the regulation of civil aviation but does not contain the detailed airworthiness standards found in Part 23. An Aircraft Maintenance Manual focuses on the procedures for maintaining an aircraft rather than defining the requirements for its certification and airworthiness at the manufacturing stage.