What is the minimum required training hours for ET (Eddy Current) NDI method?

The correct answer reflects the minimum required training hours for the Eddy Current (ET) Non-Destructive Inspection (NDI) method, which is established to ensure that personnel are adequately trained in this specific testing technique. A minimum of 10 hours of training is often mandated to provide technicians with a foundational understanding of the principles and applications of the Eddy Current method, which is crucial for detecting subsurface flaws in conductive materials.

This training typically encompasses the theory behind electromagnetism, the specific mechanics of Eddy Current testing, the setup and operation of equipment, as well as interpreting results accurately. Such a comprehensive approach not only enhances the technician's capability to perform inspections effectively but also ensures that safety and quality standards in aviation maintenance are maintained. Through this level of training, personnel can be confident in their skills to identify potentially critical issues that could affect aircraft safety and performance.