Special Features:

Used to prevent birds from nesting inside aperture

Properties:

A fabricated reusable textile, leather, or plastic item specifically designed to fully or partially cover an aircraft surface(s) or aircraft component(s) to protect against dust, dirt, and weather elements during maintenance operations or while the aircraft is on the ground. It normally has ropes, straps, snap fasteners, slide fasteners, and the like, for securing purposes. It usually has a warning streamer to indicate removal before flight. Excludes cover, aircraft engine; shield, aircraft ground servicing; guard, aircraft ground servicing; and cover (as modified).