Inspection team catches a break
Senior Airman Brett Gyurnek , 437th Maintenance Squadron Non-Destructive Inspection technician, covers a core reverser gear with fluorescent penetrant during a deficiency inspection at Joint base Charleston, S.C. July 10, 2017. Fluorescent penetrant testing is a reliable way to illuminate fractures on the surface of damaged aircraft parts. It is done by submerging the part in a fluorescent liquid and allowing the dye to penetrate into any cracks. The liquid is then rinsed off and placed in a developing agent which makes the fluorescent liquid illuminate brighter under an ultraviolet light. The part is then placed under an ultraviolet light and, if cracks are present, they will light up and make the deficiency more visible.