Abstract: Systems and methods for recording and communicating engine data are provided. One example embodiment is directed to a method for communicating with a ground system. The method includes receiving engine data. The method includes storing the engine data. The method includes receiving one or more phase signals. The method includes determining that the one or more phase signals indicate that a transmission to the ground system is allowed. The method includes transmitting the engine data to the ground system in response to the determination.

Abstract: Systems and methods for airline fleet retirement prediction are provided. One methods includes obtaining market information for the airline that defines at least one market for the airline, determining a plurality of aircraft types (priority groupings) for the airline within the at least one market to define an airline fleet model, and determining deployment priorities for the plurality of aircraft types within the at least market. The method further includes developing one or more operational models using at least one of airline operational data or airline fleet data for the plurality of aircraft types and determining aircraft retirement prediction data for the airline using the airline fleet model and the one or more operational models developed for the airline.