This manual provides comprehensive structural repair information for North American Aviation trainer airplanes, specifically covering the AT-6A, AT-6B, AT-6C, SNJ-3, and SNJ-4 series. These aircraft were developed under various contracts, including AC-12969, AC-15977, W535 AC-19192, W535 AC-29319, DA W535 AC-8, DA-W535 AC-2799. Manufactured by North American Aviation, Inc. at facilities in Dallas, Inglewood, and Kansas City, these robust trainers represent a significant part of aviation history, built for reliability and performance in their intended roles.

The purpose of this handbook is to detail the procedures necessary for the structural repair of these aircraft models. It serves as an essential resource for technicians and maintenance personnel responsible for ensuring the airworthiness and structural integrity of the AT-6 and SNJ series aircraft. By adhering to the guidelines and specifications outlined within, operators can maintain these aircraft to the highest standards, ensuring continued safe operation.