With vaccine rollouts picking up pace and lockdown measures gradually being eased, airlines across Europe have started making preparations for a summer of increased demand. Part of this work is focused on ensuring that the large proportion of planes that have been grounded for more than a year now are safe to fly. But bringing these dormant planes out of storage and making them airworthy requires a significant amount of work. Maintenance teams have to work round-the-clock to go through thorough procedures, making checks on every part of the plane and running tests on all the electronics, as well as ensuring that its safety equipment still works effectively.