Amendment to Class D and Class E Airspace Areas; Manhattan, KS

This action establishes a new Class E surface area for the Manhattan Municipal Airport, Manhattan, KS, and changes the times of designation for the Manhattan, KS, Class E surface area extensions from part-time to full-time. The Class E surface area and surface area extensions are necessary to accommodate Instrumental Flight Rules (IFR) operations during periods when the airport traffic control tower (ATCT) is closed. This action also makes editorial amendments to the legal description of the Manhattan, KS, Class D airspace area, but does not change the dimensions or operating requirements of the Class D airspace area. This change was made necessary by the recent conversion of the adjacent Class D airspace area at Marshall Army Airfield, Ft. Riley, KS, to a Class E surface area. This action also modifies the Class E airspace area extending upward from 700 feet above ground (AGL) at Manhattan, KS, by increasing the radius of the area from 6 nautical miles (NM) to 6.7 NM. A review of the airspace at Manhattan, KS, indicated that the 700 AGL area did not meet the requirements of FAA Order 7400.2D.