Amendment of Class E Airspace; Ankeny, IA

This action amends Class E airspace at Ankeny, IA. Cancellation of NDB approaches at Ankeny Regional Airport has made it necessary to reconfigure Class E airspace. Controlled airspace is necessary to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Ankeny Regional Airport, Ankeny, IA. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at Ankeny Regional Airport. This action also updates the geographic coordinates of the airport to coincide with the FAA's National Aeronautical Charting Office.