A comprehensive software system and a method for performing a comprehensive reliability analysis of an aircraft are provided. For example, an aircraft systems database is analyzed to extract information corresponding to an aircraft. A plurality of goodness-of-fit tests may be performed based upon the information using a plurality of statistics and a plurality of significance levels to generate a plurality of results of the plurality of goodness-of-fit tests. The plurality of results may be analyzed to determine a distribution model associated with a fit establishing a criteria. The distribution model may be applied to the information to determine a set of reliability indexes. A reliability report may be generated for a part of the aircraft based upon the set of reliability indexes. Maintenance of the part of the aircraft may be facilitated based upon the reliability report and/or illustrations generated based upon the set of reliability indexes.