Hi,
I´m not sure from where the SSVV ICAO code, but fact is not from us because we don´t have this ICAO code in our database, nor have any information about SSVV (not in the navdata, nor in the charts).
The SSVV ICAO code is a default airport in the X-Plane 11 scenery airport-file, which we doesn´t provide nor do we update this file.
Sorry, please report this to the X-Plane because this issue is a scenery issue in the X-Plane.
Thank you,
Richard