LANGLEY AIR FORCE BASE, Va.-- A F-15C Eagle bell house hydraulic component is inspected in the final verification stage March 22. Non-Destructive Inspection Airmen search for cracks and flaws on aircraft and their components, aerospace ground equipment, safety equipment, and also test jet engine oil samples, using a variety of methods, like magnetic particle, fluorescent penetrant, eddy current, radiography, optical and ultrasonic equipment. (U.S. Air Force photo/ Senior Airman Dana Hill)