Table 1-1. NDI Method Codes

T.O. 33B-1-1 1-9 1.3.5 Entries on AFTO Form 242. NOTE If it is not possible to provide adequate space on a single sheet for a complete detailed description of a NDI technique, the AFTO Form 242 should be supplemented with additional sheets of plain bond paper. Examples of AFTO Form 242 for radiographic inspection techniques and ultrasonic inspection techniques are provided for illustrative purposes (Figures 1-3). Entries for other inspection methods are similar and are described in the appropriate paragraphs. The first twelve blocks on AFTO Form 242 are used to identify the submitting command, organization and initiator, also the system, subsystem, next higher assembly, the actual part or component to be inspected and a description of the defect/condition or reason for the inspection. The instructions for completing these twelve blocks are provided in the following paragraphs: 1.3.5.1 General Information. 1.3.5.1.1 Block 1 Control Number. A standardized number that reflects the command and organization developing the technique and method used. The control number SHALL be made up of three series of numbers and letters as follows: a. Two digits of the calendar year with an alphabetic character designating the applicable NDI method code (Table 1-1). If more than one inspection method is used to determine the integrity of a part, and both techniques are listed on the same AFTO Form 242, use a letter for each inspection method, (i.e., 86CA) with the letter for the primary inspection method being listed first. b. The code for the major command (Table 1-2) and the organization or unit number of the technique originator. c. A sequential number assigned by the originating organization without regard for method of inspection or calendar year. d. Example: Report/Control No. 97A-Q62-12 Where: 97 stands for calendar year 1997 A is the method designator for penetrant inspection Q is Major Command Code for AMC 62 is the Unit Number, i.e., 62nd Maintenance Squadron 12 stands for the twelfth technique submitted by the 62nd MXS Table 1-1. NDI Method Codes. NDI Method Method Code Penetrant A Magnetic Particle B Electromagnetic C Ultrasonic D Radiographic E