German Airways | Amsterdam Airport Schiphol.
German Airways and Adler belong to the Zeitfracht Group.
In 2022 Summer, KLM wet-leased Germany Airways' airplanes to provide extra capacity on its network.
Because KLM is using Airbus planes to replace its Boeing planes...it needs to train its pilots and crews. So KLM rents planes and crews from German Airways to replace its personnel during their training.