What document is used to determine if all placards are installed in the aircraft?

The Type Certificate Data Sheet (TCDS) is the correct document for determining if all placards are installed in the aircraft because it provides essential details about the aircraft's type design, including any necessary equipment and placards required for compliance with regulatory standards. The TCDS serves as a comprehensive guide that outlines the specifications and limitations imposed on the aircraft by the regulatory authority, ensuring that it adheres strictly to the approved design.

This document lists the necessary placards, markings, and configurations needed for the safe operation of the aircraft. By referencing the TCDS, maintenance personnel can confirm that the aircraft has been equipped with the correct placards, thus ensuring compliance with safety and operational regulations.

In contrast, while the Aircraft Operating Manual may contain information on aircraft operation and capabilities, it does not specifically detail the required placards. The Aircraft Specification typically provides a summary of the aircraft's design but lacks the level of detail on placards. The Maintenance Status Report provides updates on maintenance activities but does not serve as a reference for compliance with placarding requirements.