Federal Aviation Administration October 25, 2005 – Federal Register Recent Federal Regulation Documents

The FAA is revising an earlier proposed airworthiness directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 560 airplanes. The original NPRM would have required revising the airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions; installing a placard; doing other specified investigative and corrective actions as necessary; and modifying the boost pumps. The original NPRM also would have required the subsequent removal of the AFM revision and placard. The original NPRM resulted from a report of a chafed electrical wiring harness, which was arcing inside the fuel tank. This action revises the original NPRM by identifying certain service information not identified in the original NPRM. We are proposing this supplemental NPRM to prevent potential fuel vapor ignition in a fuel tank, which could result in explosion and loss of the airplane.

This action proposes to establish new Class E airspace at Tok Junction, AK. Two new Standard Instrument Approach Procedures (SIAPs) are being published for the Tok Junction Airport. There is no existing Class E airspace to contain aircraft executing the new instrument procedures at Tok Junction, AK. Adoption of this proposal would result in the establishment of Class E airspace upward from 700 feet (ft.) and 1,200 ft. above the surface at Tok Junction, AK.

This action proposes to establish new Class E airspace at Nondalton, AK. One new Standard Instrument Approach Procedure (SIAPs) and one Departure Procedure (DP) are being published for the Nondalton Airport. There is no existing Class E airspace to contain aircraft executing the new instrument procedures at Nondalton, AK. Adoption of this proposal would result in the establishment of Class E airspace upward from 700 feet (ft.) above the surface at Nondalton, AK.

This action proposes to revise Class E airspace at Koliganek, AK. Two new Standard Instrument Approach Procedures (SIAPs) are being published for the Koliganek Airport. Additional Class E Airspace is needed to contain aircraft executing instrument approaches at Koliganek Airport. Adoption of this proposal would result in additional Class E airspace upward from 1,200 feet (ft.) above the surface at Koliganek, AK.

It has long been contrary to Federal Aviation Regulations for an air carrier to ``wet lease'' an aircraft from an individual or entity that is not separately authorized to engage in common carriage. By this notice, the Federal Aviation Administration (FAA) seeks comment on proposed policy guidance identifying those commercial arrangements that would be considered to be unlawful wet lease arrangements under these regulations as well as those that would be permissible. Additionally, we seek comment on our proposed treatment of certain other commercial arrangements between air carriers and aircraft owners thatwhile not amounting to illegal wet leasescould nevertheless result in the air carrier impermissibly ceding operational control of flight to non-certificated entities.

The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation (RRC) (formerly Allison Engine Company) 501- D22A, 501-D22C, and 501-D22G turboprop engines. This AD requires a onetime inspection for proper metal hardness of certain 1st stage, 2nd stage, 3rd stage, and 4th stage turbine wheels. This AD results from a report of a turbine wheel found to be over dimensional limits, caused by improper metal hardness. We are issuing this AD to prevent uncontained turbine wheel failure, leading to damage of the airplane and total loss of engine power.