Amendment of Class D and Class E Airspace; Charlottesville, VA
This action amends Class E Airspace Designated as an Extension to a Class D at Charlottesville-Albemarle Airport, Charlottesville, VA, as the Azalea Park Non-Directional Radio Beacon (NDB) has been decommissioned requiring airspace reconfiguration at the airport. Also, the Notice to Airmen (NOTAM) part time status is removed from this airspace. This action also updates the geographic coordinates of the above airport and the University of Virginia Medical Center Heliport in Class D and E airspace listed in this final rule. This action enhances the safety and management of Instrument Flight Rules (IFR) operations in the area.
Proposed Amendment of Class E Airspace, Indiana, PA
This action proposes to amend Class E airspace at Indiana, PA, to accommodate the new runway at Indiana County Airport (Jimmy Stewart Field). Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at the airport. This action also would update the geographic coordinates of airport.
Proposed Amendment of Class E Airspace; Santa Rosa, CA
This action proposes to modify Class E airspace designated as an extension to a Class D airspace at Charles M. Schulz-Sonoma County Airport, Santa Rosa, CA, by reducing the segment extending northwest of the airport and adding a segment southeast of the airport. This action also proposes to modify Class E airspace extending upward from 700 feet above the surface to include only that area required for Instrument Flight Rules (IFR) operations at the airport. Additionally, this action updates the airport's geographic coordinates for both Class D and E airspace areas. A review of the airspace has made this proposal necessary for the safety and management of Standard Instrument Approach Procedures for IFR operations at the airport.
Establishment of Class E Airspace; Lisbon, ND
This action establishes Class E airspace in Lisbon, ND. Controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Lisbon Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Airworthiness Directives; General Electric Company Turbofan Engines
We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GE90-76B, GE90-77B, GE90-85B, GE90-90B, and GE90-94B turbofan engines. This AD was prompted by an uncontained failure of the high-pressure compressor (HPC) stage 8-10 spool, leading to an airplane fire. This AD requires eddy current inspection (ECI) or ultrasonic inspection (USI) of the HPC stage 8-10 spool and removing from service those parts that fail inspection. We are issuing this AD to prevent failure of the HPC stage 8-10 spool, uncontained rotor release, damage to the engine, and damage to the airplane.
Fuel Tank Vent Fire Protection
The FAA is amending certain airworthiness regulations for transport category airplanes to require fuel tank designs that prevent a fuel tank explosion caused by the propagation of flames, from external fires, through the fuel tank vents. This final rule requires a delay of two minutes and thirty seconds between exposure of external fuel tank vents to ignition sources and explosions caused by propagation of flames into the fuel tank, thus increasing the time available for passenger evacuation and emergency response. These amendments apply to applications for new type certificates and certain applications for amended or supplemental type certificates. The amendments also require certain airplanes produced in the future and operated by air carriers to meet the new standards.