A4A Specification 105 Revision 2017.1 is a technical PDF guideline for establishing nondestructive testing personnel training and qualification programs in aviation maintenance environments. It covers Level I, Level I Special, Level II, and Level III qualifications; formal training and on-the-job experience; physical, written, and practical examinations; recertification and recurrent training; certification records; and recommended training outlines.
The specification addresses radiographic, magnetic particle, ultrasonic, liquid penetrant, eddy current, thermography and infrared, shearography and holography, vibration analysis, acoustic emission, and laser testing methods. It also includes definitions, qualification requirements, training and experience tables, examination guidance, a re-certification credit system for Level III personnel, references, and licensing terms.
Application Scope: Intended for airlines, aircraft maintenance organizations, air carriers, repair stations, employers, training providers, and qualified personnel developing or administering nondestructive testing programs for aircraft, powerplants, and components.
