FAR 23 Fatigue Substantiation Procedures: GAMA Committee Report

A Project Group of representatives of General Aviation Manufacturers Association (GAMA) companies was established and given the assignment to study several methods of fatigue evaluation and recommend procedures for compliance with new FAA regulations concerning fatigue of aircraft wings. The group held several meetings in which sources of data and the major problems associated with fatigue evaluation were discussed. The author served as chairman of the Project Group and reports in this paper on the studies and recommendations made by the group.