When does the Technical Airworthiness Authority (TAA) need to see the Compliance Matrix for approval?
This should happen early in the development of a new type design or a proposed design change. Submission of the Compliance Matrix results only in TAA approval-in-principal. When all finding authority signatures have been obtained, the Compliance Matrix becomes the Compliance Record. See Technical Airworthiness Manual (TAM), C-05-005-001/AG-01, Part 2, Chapter 1, Section 2.