Federal Aviation Administration September 21, 2010 – Federal Register Recent Federal Regulation Documents

This action modifies the Chicago, IL, Class B airspace area by expanding the existing airspace area to ensure containment of Instrument Flight Rules (IFR) aircraft conducting instrument approach procedures within Class B airspace, and segregating IFR aircraft arriving/departing Chicago O'Hare International Airport (ORD) and Visual Flight Rules (VFR) aircraft operating in the vicinity of the Chicago Class B airspace area. The additional Class B airspace will support simultaneous instrument approach procedure operations to ORD's triple parallel runways today, as well as the three additional parallel runways (six total) planned for the near future. This action enhances safety, improves the flow of air traffic, and reduces the potential for midair collision in the Chicago terminal area, further supporting the FAA's national airspace redesign goal of optimizing terminal and en route airspace areas to reduce aircraft delays and improve safety and efficiency of the National Airspace System (NAS).

This action will establish Class E airspace and amend existing Class D airspace at Troutdale, OR, to accommodate aircraft using Non- directional Radio Beacon (NDB) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Portland-Troutdale Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also amends the geographic coordinates of the Class D airspace area at the airport.

This action will establish Class E airspace at Toledo, WA, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Ed Carlson Memorial Field-South Lewis County Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: