Federal Aviation Administration 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:

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.