Upon (or at any time after) this Lease shall be terminated in respect of any Aircraft and there shall have been paid in full all amounts owing hereunder in respect of such Aircraft, and provided that there shall be no Default Event continuing after giving effect to such payment, the Lessee may direct the Lessor to execute and deliver to or as directed in writing by the Lessee an appropriate instrument or instruments prepared by the Lessee and reasonably satisfactory to the Lessor releasing such Aircraft from the lien of this Lease and the Lessor shall execute and deliver such instruments as aforesaid and give written notice thereof to such Persons as the Lessee may reasonably request.