AC 23-13A, ADVISORY CIRCULAR, FATIGUE, FAIL-SAFE, AND DAMAGE TOLERANCE EVALUATION OF METALLIC STRUCTURE FOR NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES (29 SEP 2005)

AC 23-13A, ADVISORY CIRCULAR, FATIGUE, FAIL-SAFE, AND DAMAGE TOLERANCE EVALUATION OF METALLIC STRUCTURE FOR NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES (29 SEP 2005)., This Advisory Circular (AC) sets forth an acceptable means of showing compliance with Title 14 Code of Federal Regulations (14 CFR), part 23. This guidance is applicable to fatigue, fail-safe, and damage tolerance evaluations of metallic structure in normal, utility, acrobatic, and commuter category airplanes. This AC provides information on approval of continued operational flight with known cracks in the structure of small airplanes, regardless of certification basis. This AC also clarifies the use of AC 20-128A in the evaluation of rotorburst structural hazards in small airplanes. Finally, this AC consolidates existing policy documents and certain technical reports into one document.