Abstract: A method of providing access to flight-related data of aircraft includes correlating a plurality of data sets that are different from each other and each contain flight-related data for one or more aircraft engines, to determine a plurality of flights of the one or more aircraft engines that correspond to the plurality of data sets. At least a portion of the flight-related data describes operation of the aircraft engines during the plurality of flights. The correlating is performed based on metadata of the plurality of data sets, and the plurality of data sets includes a plurality of first data sets that utilize a plurality of different schemas.