Department of Transportation December 19, 2006 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:

The FHWA is extending the comment period for a notice of proposed rulemaking (NPRM) and request for comments, which was published on November 1, 2006, at 71 FR 64173. The original comment period is set to close on January 2, 2007. The extension is based on concern expressed by the National Committee on Uniform Traffic Control Devices (NCUTCD) that the January 2 closing date does not provide sufficient time for discussion of the issues in committee and a subsequent comprehensive response to the docket. The FHWA recognizes that others interested in commenting may have similar time constraints and agree that the comment period should be extended. Therefore, the closing date for comments is changed to February 16, 2007, which will provide the NCUTCD and others interested in commenting additional time to discuss, evaluate, and submit responses to the docket.

This action revises Class E airspace at Kodiak, AK to provide adequate controlled airspace to contain aircraft executing Standard Instrument Approach Procedures (SIAPs). The FAA Instrument Flight Procedures Production and Maintenance Branch had noticed that a section of airspace north of Kodiak, AK, needed to be converted to controlled airspace. This rule addresses this issue and results in the revision of Class E airspace upward from 3,500 feet (ft.) above the surface at Kodiak, AK.

This action revises Class E airspace at Perryville, AK to provide adequate controlled airspace to contain aircraft executing a new Standard Instrument Approach Procedure (SIAP) and a new Stardard Instrument Departure procedure (SID). This rule results in the revision of Class E airspace upward from 700 feet (ft.) and 1,200 ft. above the surface at Perryville, AK.

This action revises Class E airspace at Tok Junction, AK to provide adequate controlled airspace to contain aircraft executing a new Standard Instrument Approach Procedure (SIAP). This rule results in the revision of Class E airspace upward from 700 feet (ft.) and 1,200 ft. above the surface at Tok Junction, AK.

The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce Corporation (RRC) 501-D series turboprop engines. That AD requires removal from service of certain turbine rotor components at reduced life limits. This AD requires the same actions but adds two new life limits. This AD results from RRC reevaluating and revising component life limits for 501-D22 series turboprop engines. We are issuing this AD to prevent uncontained turbine rotor failure resulting in an in-flight engine shutdown and possible damage to the airplane.

The purpose of this notice is to: (1) Announce the publication of interim CMAQ guidance; and (2) solicit public comment on the contents of the interim guidance. Sections 1101, 1103 and 1808 of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) (Pub. L. 109-59, Aug. 10, 2005) amended the Congestion Mitigation and Air Quality Improvement (CMAQ) Program, and authorizes $8.6 billion to support the CMAQ program in 2005-2009. The interim guidance went into effect October 31, 2006; however, we will review all comments submitted to the docket and will modify the guidance as necessary or appropriate.