Federal Aviation Administration September 1, 2011 – Federal Register Recent Federal Regulation Documents

The Federal Aviation Administration (FAA) is issuing this notice to advise the public that the FAA has prepared, and approved on August 8, 2011, a Finding of No Significant Impact (FONSI)/Record of Decision (ROD) based on the Final Environmental Assessment (Final EA) for a Proposed Airport Traffic Control Tower (ATCT) with Associated Base Building at University of Illinois Willard Airport (CMI), Savoy, Illinois. The FAA prepared the Final EA in accordance with the National Environmental Policy Act and the FAA's regulations and guidelines for environmental documents and was signed on July 18, 2011. Copies of the FONSI/ROD and/or Final EA are available by contacting Ms. Virginia Marcks through the contact information provided below.

The FAA is issuing this notice to advise the public of a meeting of RTCA NextGen Advisory Committee (NAC).

The FAA is issuing this notice to advise the public of a meeting of Joint RTCA Special Committee 213: EUROCAE WG-79: Enhanced Flight Vision Systems/Synthetic Vision Systems (EFVS/SVS).

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated 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:

We propose to supersede an existing airworthiness directive (AD) that applies to certain Model 737-300, -400, and -500 series airplanes. The existing AD currently requires repetitive external non-destructive inspections to detect cracks in the fuselage skin along the chem-mill step at stringers S-1 and S-2 right, between station (STA) 827 and STA 847, and repair if necessary. Since we issued that AD, we have received reports of additional crack findings of the fuselage crown skin at the chem-milled steps. This proposed AD would add inspections for cracking in additional fuselage crown skin locations, and repair if necessary. This proposed AD would also reduce the inspection thresholds for certain airplanes, extend certain repetitive inspection intervals, and add airplanes to the applicability of the existing AD. We are proposing this AD to detect and correct fatigue cracking of the fuselage skin panels at the chem- milled steps, which could result in sudden fracture and failure of the fuselage skin panels, and consequent rapid decompression of the airplane.

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require removing certain ``machined-from-billet'' Volare LLC (formerly Precision Airmotive Corporation, formerly Facet Aerospace Products Company, formerly Marvel-Schebler (BorgWarner)) HA-6 carburetors, inspecting for a loose mixture control sleeve or for a sleeve that may become loose, repairing the carburetor, or replacing the carburetor with one eligible for installation. This proposed AD was prompted by a report of a ``machined-from-billet'' HA-6 carburetor having a loose mixture control sleeve that rotated in the carburetor body causing restriction of fuel and power loss. We are proposing this AD to prevent engine in-flight shutdown, power loss, and reduced control of the airplane.