airport purposes
(2) (A) In this paragraph, “airport purposes” means a use of property interests (except a sale) for— (i) aviation business or activities; (ii) activities necessary or appropriate to serve passengers or cargo in air commerce; (iii) nonprofit, public use facilities that are not inconsistent with the needs of aviation; or (iv) a business or activity not inconsistent with the needs of aviation that has been approved by the Secretary. (B) During the period of the lease, the real property constituting the Metropolitan Washington Airports shall be used only for airport purposes. (C) If the Secretary decides that any part of the real property leased to the Airports Authority under this chapter is used for other than airport purposes, the Secretary shall— (i) direct that the Airports Authority take appropriate measures to have that part of the property be used for airport purposes; and (ii) retake possession of the property if the Airports Authority fails to have that part of the property be used for airport purposes within a reasonable period of time, as the Secretary decides.