Worked on the VATSIM-UK/UK-Sector-File repository to deliver a targeted data quality fix for Lydd (EGMD) runway headings, addressing a navigation data discrepancy by updating values from 032/212 to 031/211. The approach emphasized data management and documentation, ensuring the correction was clearly traceable through a detailed changelog entry and proper attribution in version control. Used Markdown and plain text to maintain release hygiene and support change-management processes. The update improved pilot safety by providing accurate runway information for EGMD procedures, with all changes referenced to relevant issues and validated for accuracy within the established workflow and repository standards.