US Air Force (USAF) Technical Sergeant (TSGT) Marcel Norman, Non-Commissioned Officer in Charge (NCOIC), Non Destructive Inspection Lab (NDI), 31st Maintenance Squadron, Aviano Air Base (AB), Italy, performs a controlled diagnostic inspection with known parameters to make sure the Magnetic Particle Inspection Unit is working properly. The machine inspect parts of the jets that can be magnetized then checked for fractures or other damage that cannot be seen by the naked eye