MUAC operates a white list to restrict which aircraft may logon to use CPDLC over the ATN. A common white list is used by MUAC and Skyguide and is maintained by the CRO. For information about the white list please click here.
In June 2014 MUAC introduced a second level of filtering to prevent SITA customers (with some exceptions) to logon as SITA have been observed for some time to suffer a significantly higher PA rate in Maastricht airspace. This filter was removed for the winter 2014/15 season and it has not been re-introduced yet.