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The Federal Aviation Administration's augmentation to the global positioning system for civil aviation is called the wide area augmentation system. This paper introduces the wide area augmentation system-based flight inspection system. This system is better optimized than the current flight inspection systems in terms of accuracy, cost, and efficiency. Although they meet the Federal Aviation Administration's flight inspection system accuracy requirements, the current flight inspection systems are either higher cost or less efficient. The innovative use of the wide area augmentation system with a radar altimeter and a television positioning system without a requirement for an inertial navigator makes it possible for the wide area augmentation system-based flight inspection system to have low cost and high efficiency in flight inspection for instrument landing system calibration. The wide area augmentation system-based flight inspection system meets the Federal Aviation Administration's accuracy requirements for CAT III ILS calibration and also provides firm integrity algorithms. The performance of the wide area augmentation system-based flight inspection system is confirmed with tests using flight data taken in collaboration with the Federal Aviation Administration. [ABSTRACT FROM AUTHOR]