A December 2012 ruling has effectively called into question the validity of engine leases in Denmark. Ruling in relation to the bankrupt regional airline Cimber Sterling, a judge in the District Court of Sønderborg ordered the trustees of the estate to return seven of the nine engines in question to the engine lessors. However, the two remaining engines, both GE CF34s valued at around USD 2 million each, were to be retained by the trustees as on the date of bankruptcy they had been affixed to the Bombardier CRJ200 aircraft for over three months.