Applied Technical Services performs NDT eddy current fastener, bore, and bolt hole inspection services to verify the condition of client aircraft engines. Keeping a plane airworthy requires a great deal of attention and preparation. Regulatory agencies across the world, such as the Federal Aviation Administration (FAA), and original equipment manufacturers (OEMs), such as Piper, each require licensed aircraft to undergo regular inspections to verify its continued airworthiness. Implementing and upholding a regular inspection schedule allows qualified technicians to find problems early enough to avoid component failure. The most thorough and cost-effective way to conduct these inspections involves a branch of analysis called nondestructive testing (NDT). While several methods serve in this capacity, including visual inspection and ultrasonic testing, one of the most trusted methods remains electromagnetic eddy current testing (ET).