Where can wood defect standards be found?

The correct answer identifies AC 43.13-1B/2B as the reference containing wood defect standards. This advisory circular is specifically designed to provide maintenance personnel with guidance on the acceptable practices for the repair and inspection of aircraft materials. It includes comprehensive information on wood, detailing the types of defects that can occur, how to assess them, and the standards required for safe and effective use in aviation.

This document covers important aspects such as moisture content, structural integrity, and the identification of wood defects, which are crucial for ensuring that wooden components meet safety and performance standards in aviation. By consulting AC 43.13-1B/2B, professionals can ensure compliance with regulations and maintain safety in aircraft operations.

Other options, while part of the Federal Aviation Administration's advisory materials, do not specifically address wood defect standards in the same detailed manner as AC 43.13-1B/2B. For example, AC 45.12 focuses on the certification requirements, AC 33.11 provides guidance relating to aircraft engines, and AC 22.14 deals with other specific subjects. Thus, AC 43.13-1B/2B is uniquely suited for understanding wood defects in the context of aviation.