Federal Aviation Administration November 22, 2005 – Federal Register Recent Federal Regulation Documents

This notice announces the availability of and requests comments on a proposed advisory circular (AC) which sets forth an acceptable means, but not the only means, of demonstration compliance with the provisions of the airworthiness standards for transport category airplanes related to Fuel Tank Flammability Reduction. This proposed AC complements revisions to the airworthiness standards that are being proposed by a separate notice. This notice is necessary to give all interested persons an opportunity to present their views on the proposed AC.

The FAA proposes to adopt a new airworthiness directive (AD) for certain Raytheon Aircraft Company (Raytheon) Models 58P and 58TC airplanes used as a lead airplane by the United States Forest Service. This proposed AD would require you to insert a new supplement into the Limitations Section of the Pilot's Operating Handbook and Airplane Flight Manual (POH/AFM) that establishes new limits for the structural life of the airframe (wing, fuselage, empennage, or associated structure); and dispose of the life-limited airframe following 14 CFR 43.10 when the limit of the structural life of the airframe is reached. This proposed AD results from Raytheon issuing a POH/AFM supplement that establishes the structural life limit of 4,500 hours time-in- service (TIS) for the airframe (wing, fuselage, empennage, and associated structure) for any Models 58P and 58TC airplanes used as a lead airplane by the United States Forest Service; and FAA's determination that the structural life limit is necessary. We are issuing this proposed AD to prevent cumulative fatigue damage and fatigue cracking damage that would sufficiently reduce residual strength of the airframe and result in failure. Failure of the airframe (wing, fuselage, empennage, or associated structure) could lead to loss of control of the airplane.

This action corrects an omission in the legal description of Class E2 airspace in a direct final rule, request for comments correction that was published in the Federal Register on Thursday, October 13, 2005 (70 FR 59651).

The Federal Aviation Administration (FAA) announces the availability of final policy on smoke penetration tests conducted under the provisions of Sec. 25.857.