AC 20-27E, ADVISORY CIRCULAR, CERTIFICATION AND OEPRATION OF AMATEUR-BUILT AIRCRAFT (26 SEP 2001)

AC 20-27E, ADVISORY CIRCULAR, CERTIFICATION AND OEPRATION OF AMATEUR-BUILT AIRCRAFT (26 SEP 2001)., This advisory circular (AC) contains information and guidance on the fabrication and assembly, airworthiness certification, and operation of amateur-built aircraft of all types; explains the amount of fabrication and assembly the builder must accomplish for the aircraft to be eligible for amateur-built certification; and describes the role of the Federal Aviation Administration (FAA) in the certification process. The information contained herein sets forth an acceptable means, but not the only means, for compliance with the applicable sections of Title 14 Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Parts (part 21).