Generate AIRAC database for TOPER using Navigraph-PSS Download the utility (v1.0.0) Install PSS Navigraph to a temporary directory, or use existing PSS installation.  Make sure that the utility (.exe) file is in the same folder as NavData directory, for example: C:\PSS\toper-db-updater.exe
C:\PSS\NavData\... Two files will be generated: airports_10.dat and runways_10.dat . Please move these files to the main TOPER installation directory overwriting previous versions.