Federal Aviation Administration June 27, 2012 – Federal Register Recent Federal Regulation Documents

This action proposes to modify Class E airspace at Lewistown Municipal Airport, Lewistown, MT. Controlled airspace is necessary to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Lewistown Municipal Airport, Lewistown, MT. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.

The FAA is issuing this Notice to advise the public that it has prepared a Final Environmental Impact Statement (FEIS) for a proposed new runway and associated facilities and improvements at the Taos Regional Airport, Taos, New Mexico. The FEIS reflects the Section 106 consultations between the FAA, the Taos Pueblo, Town of Taos, National Park Service, Advisory Council on Historic Preservation, New Mexico State Historic Preservation Officer (SHPO), and the New Mexico Department of Transportation regarding adverse effects on the Taos Pueblo World Heritage Site and other traditional cultural properties within the National Register Eligible Historic District associated with the Taos Pueblo. The FEIS also includes floodplain impact evaluations. The FAA is seeking comments on those sections of the FEIS that have been updated and/or contain information that has become available since the release of the DEIS. Please see the SUPPLEMENTARY INFORMATION section below for more information. The FAA is providing a thirty day (30) day FEIS review period. The FEIS review period begins on the date of the publication of this Notice of Availability in the Federal Register, and will close on July 30, 2012. The FAA must receive written comments on these subsections postmarked no later than July 30, 2012. Comments received after that date may not be considered by the FAA. All comments on the FEIS are to be submitted to Mr. Dean McMath of the FAA, at the address shown in the section below entitled, ``For Further Information or to Submit Comments''.

We propose to adopt a new airworthiness directive (AD) for certain Saab AB, Saab Aerosystems Model 340A (SAAB/SF340A) and SAAB 340B airplanes. This proposed AD was prompted by reports of stall events during icing conditions which were not accompanied with a prior stall warning. This proposed AD would require replacing the stall warning computer (SWC) with a new SWC, and modifying the airplane for the replacement of the SWC. We are proposing this AD to prevent natural stall events when operating in icing conditions, which if not corrected may result in loss of control of the airplane.