Worked on the lennycolton/vatglasses-data repository to clarify sector ownership and frequencies within the GMMM and GMAC FIRs, addressing pilot confusion and enhancing operational reliability in air traffic control systems. Applied configuration management and data management skills to update sector mappings, ensuring that controller jurisdiction and online status accurately reflected real-world airspace boundaries. Leveraged JSON to implement precise corrections, eliminating unnecessary frequency change requests and improving data integrity for airspace coordination. Delivered a single, well-documented feature update that improved operational safety and visibility, demonstrating disciplined change management and thorough documentation practices throughout the month-long project. No bugs were reported or fixed.