AC 20-107A, ADVISORY CIRCULAR, COMPOSITE AIRCRAFT STRUCTURE (25 APR 1984)
AC 20-107A, ADVISORY CIRCULAR, COMPOSITE AIRCRAFT STRUCTURE (25 APR 1984)., his advisory circular sets forth an acceptable, but not the only, means of showing
compliance with the provisions of Federal Aviation Regulations (FAR), Parts 23, 25, 27, and 29
regarding airworthiness type certification requirements for composite aircraft structures, involving
fiber reinforced materials, e.g., carbon (graphite), boron, aramid (Kevlar), and glass reinforced
plastics. Guidance information is also presented on associated quality control and repair aspects.