Title: Demonstrate the dye-penetrant inspection process.
Course: Aviation Maintenance Technology II (20114-II) > Section: Exploring Aircraft Materials and Processes

Demonstration should include

- determining whether a part needs the dye-penetrant process
- locating small cracks and discontinuities open to the surface
- ensuring the part is accessible to apply penetrant
- applying penetrant to the part to be inspected, ensuring its surface is clean
- removing excess penetrant and applying developer to the surface
- drawing out the penetrant
- checking for lines on the surface, indicating the location of a crack.

Process/Skill Questions:

- Why is it important that the aircraft part be accessible for a liquid penetrant inspection?
- What defects can be discovered with dye/liquid particle inspection?