11.—(a) The CAA shall not sell an aircraft on behalf of Eurocontrol under these Regulations without the leave of the court; and the court shall not give leave except on proof that a sum is due to Eurocontrol for charges under these Regulations, that default has been made in the payment thereof and that the aircraft which the CAA seeks leave to sell on behalf of Eurocontrol is liable to sale under these Regulations by reason of default.
(b)In this regulation, “the court” means, as respects England, Wales and Northern Ireland, the High Court and, as respects Scotland, the Court of Session.