Constant Aviation has completed more Challenger 604 avionics modernisations than the rest of the industry combined, with 80 per cent of the total. It generates plenty of business, with 363 of the type still in service.

The Pro Line Fusion flight deck upgrade can be performed at any one of Duncan Aviation's three main facilities in Battle Creek, Michigan; Lincoln, Nebraska; and Provo, Utah or at any one of its 27 satellite stations.

Users of the Venue cabin management system will notice more icons and less text and will need fewer touches to achieve most tasks. The cabin touch panels and the mobile app now share the same look.