Provides information and guidance concerning acceptable means, but not the only means, of complying with Title 14 of the Code of Federal Regulations (14 CFR) part 23 Subpart C and portions of Subpart D. It consolidates the substance of existing Civil Aeronautics Administration (CAA) and Federal Aviation Administration (FAA) letters into a single reference. It also presents information from certain presently existing AC's that cover general topics and specific airworthiness standards. Material in this AC is neither mandatory nor regulatory. AC methods may be freely chosen, or ignored, by an applicant who seeks to demonstrate regulatory compliance. Use of FAA published AC guidance frequently speeds the design approval process for an applicant.

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.