{"schema_version":1,"airport":"SD06","entries":[{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"df8b7888400e","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: runway end elevation: none -> 1600 ft MSL; touchdown zone elevation: none -> 1600 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"1600"},{"field":"TDZ_ELEV","old":"","new":"1600"}]}],"first_cycle":"2025-06-12","last_cycle":"2025-06-12"}