All cargo companies run a wide fleet of many different plane types, particularly to avoid this very problem of being grounded by the FAA. But yes, these were still widely used in cargo transports. Although newer 2 engine planes can haul the same kg and use a lot less fuel.
All cargo companies run a wide fleet of many different plane types, particularly to avoid this very problem of being grounded by the FAA. But yes, these were still widely used in cargo transports. Although newer 2 engine planes can haul the same kg and use a lot less fuel.