A339 Auto Step Climb Script (SimBrief + FSUIPC7) – Headwind A339

The A339 Auto Step Climb add-on enables automatic step climbs for the Headwind A339 in Microsoft Flight Simulator, utilizing SimBrief flight plans. This Lua script reads step climb waypoints from SimBrief and adjusts the FCU altitude as the aircraft approaches the designated waypoint distance. The implementation is external via FSUIPC7, ensuring no modifications are made to aircraft files, with a configuration designed to be lightweight and stable.