AC 23-20, ADVISORY CIRCULAR: ACCEPTANCE GUIDANCE ON MATERIAL PROCUREMENT INFORMATION AND PROCESS SPECIFICATIONS FOR POLYMER MATRIX COMPOSITE SYSTEMS (19-SEP-2003)

AC 23-20, ADVISORY CIRCULAR: ACCEPTANCE GUIDANCE ON MATERIAL PROCUREMENT INFORMATION AND PROCESS SPECIFICATIONS FOR POLYMER MATRIX COMPOSITE SYSTEMS (19-SEP-2003)., This advisory circular (AC) provides information and guidance concerning an acceptable means, but not the only means, of compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 23. It is applicable to the material and process specifications, or other documents, used to ensure sufficient control of composite prepreg materials in normal, utility, acrobatic, and commuter category airplanes. Material in this AC is neither mandatory nor regulatory in nature and does not constitute a regulation. b. This AC has been developed with the help of industry to ensure adequate composite material control and to promote standardization of material and process specifications. It presents the procedural requirements and technical information from a regulatory perspective. Readers interested in engineering guidelines and recommended criteria should refer to the DOT/FAA Technical Reports provided under the Supporting References in paragraph 3. c. This AC is issued for guidance purposes and to outline a method of compliance with applicable airworthiness requirements. Because the method of compliance presented in this AC is not mandatory, the terms \"should\" and \"must\" used in this AC apply only to an applicant who chooses to follow this particular method.