Which document would you consult to locate the official data that verifies an aircraft design’s airworthiness status?

• A. Type Certificate Data Sheet
• B. Aircraft Wiring Diagram Manual
• C. Illustrated Parts Catalog
• D. Weight and Balance Manual

Answer: (A)

The official record that confirms an aircraft design meets airworthiness standards is the Type Certificate Data Sheet. This document accompanies the Type Certificate and clearly states the approved model or family, the design limitations, operating limits, and any variants or modifications that are approved under that design. It is the authoritative source you’d consult to verify that a particular aircraft design is legally airworthy and compliant with the applicable regulations. If changes are made to the design, amendments, Supplemental Type Certificates (STCs), or other approvals tied to that design will appear in relation to the same data sheet.

Wiring diagrams show electrical circuits and are not used to verify airworthiness status. The Illustrated Parts Catalog lists parts and part numbers for maintenance, not airworthiness approvals. The Weight and Balance Manual provides weight, center of gravity, and loading data, which are important for safe operation but do not confirm airworthiness status.