No person shall land, takeoff, taxi or otherwise operate any aircraft on, at, or from the county airports when he knows such aircraft is not operating properly, or is equipped with any part or safety device which is defective or unsafe. Deviations from this restriction shall only be permitted by specific authorization from the airport manager or his designated representative. Nor shall any aircraft be operated on or at the airports, or on any runway thereof, when any such airport or runway has been closed to traffic by the airport manager or other legal authority, and such closure has been indicated by the placement of an "X" at each end of the closed runway.
(Ord. 79-12 § 26B, 1979.)