« Back to Advisory Circulars Main Page

21-26 - Quality Control for the Manufacture of Composite Structures (Consolidated reprint includes Change 1)

Date Issued
June 26, 1989
Responsible Office
AIR-200,  Aircraft Certification Service - Production & Airworthiness Certification Division

Provides information and guidance concerning and acceptable means, but not the only means, of demonstrating compliance with the requirements of FAR Part 21, Certification Procedures for Products and Parts, regarding quality control (QC) systems for the manufacture of composite structures involving fiber reinforced materials, e.g., carbon (graphite), boron, aramid (Kevlar), and glass reinforced polymeric materials. Provides guidance regarding the essential features of QC systems for composites as mentioned in AC 20-107.