It will be either the default AIRAC that comes with the plane when installed initially, or the last update you obtained from Navigraph. It’s no secret that PMDG aircraft do not use the base sim’s AIRAC data.
It will be either the default AIRAC that comes with the plane when installed initially, or the last update you obtained from Navigraph. It’s no secret that PMDG aircraft do not use the base sim’s AIRAC data.