Corendon felt that it would have to expand massively in the 2022 summer flight schedule, particularly from Germany. The majority of the growth, which has since been scaled back, was achieved with wet-lease aircraft. At times, the number of aircraft leased, including crews, was even larger than the airline's own fleet. But now it has a major problem, because Corendon Airlines and its Maltese subsidiary Corendon Europe were seized by the main customs office in Giessen due to non-payment of the German air traffic tax. The Turkish group owes the German state around six million euros. Last year, Corendon, together with its Malta subsidiary Corendon Europe, launched one new route after another. There was a real gold rush atmosphere, as it was assumed that holiday demand would be so high that, subjectively, it would have to fly from every "milk can". The project, which even included an Airbus A330 leased from Airhub Airlines, was not worth it at all. Many routes were discontinued after just a few rotations or were never started at all. The Corendon Group itself operates comparatively few aircraft. Therefore, it has rented aircraft and crews from numerous operators. This resulted in higher costs, because logically the subcontractor also wants to make money. The difference: While the ACMI partner receives a fixed fee per block hour regardless of the number of passengers carried, Corendon Airlines, as the carrier of the economic risk, is dependent on ticket revenue. Hasty expansion with many wet-lease aircraft And that was precisely the problem that led to the financial difficulties of the group. Demand was simply completely misjudged and routes from airports were not planned.