Version 1:2019.1.1+dfsg-1 of flightgear is marked for autoremoval from testing on Fri 30 Aug 2019. It is affected by #925685. It depends (transitively) on openscenegraph, affected by #875075. You should try to prevent the removal by fixing these RC bugs.
Last update: 2019-08-25
Depends on packages which need a new maintainer
The packages that flightgear depends on which need a new maintainer are: