Grace's partner is AIRS, a four-letter word, and STYLE, a five-letter word. AIRS stands for 'Aircraft Information Reporting System' and is a system used by the Federal Aviation Administration (FAA) to collect data on aircraft operations in the United States. STYLE stands for 'Standardized Training Yields Learning Excellence, ' which is a program developed by the FAA to provide standardized training for pilots. Together, AIRS and STYLE are used to ensure the safety of aircraft operations in the United States.