The FAA publishes airworthiness directives: legally binding rules saying which engines or aircraft must be inspected, repaired or have parts removed, and by when. That comes to roughly 300–400 final directives a year, more than one each business day.
Checking a fleet against them happens in two stages. The first is cheap: drop every directive that doesn’t name your aircraft or engine models. The second is the hard part: comparing a directive that does apply with each engine’s own records, including installed part and serial numbers, cycles, modification status and shop visits. One recent directive named 10 engine models, but only engines carrying 8 specific hubs needed action.
This project works on that second stage, starting with the International Aero Engines V2500 engine family.
Status: in progress. Collecting the official source documents is done and the evaluation gates are written. The retrieval and agent work is still to come.