Where would the holder of an inspection authorization find a listing of required placards for a Gulfstream American model AA-1A?

The correct choice is the Type Certificate Data Sheet (TCDS) because this document includes specific information regarding the aircraft's type design. It provides essential details such as the required placards, limitations, and operational information tied to the aircraft's certification. The TCDS is a regulatory document issued by the FAA that outlines the conditions under which the aircraft was certified, making it a key resource for anyone needing clarification on the model's requirements, including placards.

While the Aircraft Flight Manual contains operating instructions and limitations, it does not typically provide the comprehensive list of required placards that are mandated for compliance. The Aircraft Parts Catalog primarily offers information on parts and components rather than regulatory requirements. The Maintenance Manual provides guidance on maintaining and repairing the aircraft but does not usually include regulatory placard information like the TCDS does. Thus, for specific placard requirements for the Gulfstream American model AA-1A, the best reference is indeed the Type Certificate Data Sheet.