Federal Aviation Administration June 4, 2009 – Federal Register Recent Federal Regulation Documents

This action proposes special conditions for the Cessna Aircraft Company, model 525C (CJ4) airplane. This airplane will have a novel or unusual design feature associated with the installation of lithium ion (Li-ion) batteries. Cessna Aircraft Company proposes to use a lithium-ion main battery on the new model 525C (CJ4) commuter category airplane for main battery applications, and is also considering the use of this technology in several other auxiliary battery applications in this airplane. This type of battery possesses certain failure, operational characteristics, and maintenance requirements that differ significantly from that of the nickel cadmium and lead acid rechargeable batteries currently approved in other normal, utility, acrobatic, and commuter category airplanes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

This amendment adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas.

The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 221: Aircraft Secondary Barriers & Alternative Flight Deck Security Procedures.

The Federal Aviation Administration (FAA) is amending an error in its emission standards for turbine engine powered airplanes. The paragraph that describes the sampling and analytical procedures for measuring smoke exhaust emissions contains an erroneous cross reference which was included in the final rule. This document corrects that error so that the reader is able to locate the correct information.