Department of Transportation June 10, 2013 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for all CFM56-3 and CFM56-7B series turbofan engines with certain accessory gearboxes (AGBs) not equipped with a handcranking pad ``oil dynamic seal'' assembly. This proposed AD was prompted by 42 events of total loss of engine oil from CFM56 series turbofan engines while in flight. This proposed AD would require an independent inspection to verify re- installation of the handcranking pad cover after removal of the pad cover for maintenance until installation of a handcranking pad oil dynamic seal assembly. This inspection requirement exceeds normal maintenance and is necessary due to the design and location of the handcranking pad cover on the accessory gear box. We are proposing this AD to prevent loss of engine oil while in flight, which could result in engine failure, loss of thrust control, and damage to the airplane.

The FAA is issuing a SNPRM for the Notice of Proposed Rulemaking (NPRM) published on August 22, 2012 to establish Class D airspace at Bryant Army Airfield (AAF), Anchorage, AK. After review of comments received, the FAA determined that the portion of controlled airspace east of Glenn Highway needs further review and, therefore, would be eliminated from this proposal for the safety and management of aircraft operations at the airport.

This rule establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.

This action establishes Class E airspace at the Tobe VHF Omni- Directional Radio Range/Distance Measuring Equipment (VOR/DME), Tobe, CO, to facilitate vectoring of Instrument Flight Rules (IFR) aircraft under control of Denver and Albuquerque Air Route Traffic Control Centers (ARTCCs). This improves the safety and management of Instrument Flight Rules (IFR) operations within the National Airspace System.

This action establishes Class E airspace at the Gillette VHF Omni-Directional Radio Range/Distance Measuring Equipment (VOR/DME), Gillette, WY, to facilitate vectoring of Instrument Flight Rules (IFR) aircraft under control of Denver, Salt Lake City and Minneapolis Air Route Traffic Control Centers (ARTCCs). This improves the safety and management of IFR operations within the National Airspace System.

This action establishes Class E surface airspace at Tri-Cities Airport, Pasco, WA, to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Tri-Cities Airport, Pasco, WA. The geographic coordinates of Tri-Cities Airport and Vista Field Airport, Kennewick, WA, formerly called Vista Airport, are adjusted for existing Class D and E airspace. This action also makes a minor change to the legal description of the Class E airspace designated as an extension to Class D surface area. This improves the safety and management of Instrument Flight Rules (IFR) operations at the airport.

This action establishes Class E Airspace at Sanibel, FL, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) special Standard Instrument Approach Procedure (SIAP) serving Sanibel Island Heliport. This action enhances the safety and airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System. Also, geographic coordinates are corrected under their proper heading.