NDT RELIABILITY AND HUMAN FACTORS

The authors first discuss the production inspection evaluations made by different inspectors using different nondestructive testing (NDT) techniques but on the same test parts with implanted defects. The techniques involved the magnetic particle inspection and Delta Scan ultrasonic inspection on D6 ac steel parts, and liquid penetrant inspection on aluminum aircraft parts. Secondly, the ways of reducing the effects of human factors on NDT reliability are discussed.