Proposed Amendment of Class D and Class E Airspace; Charlottesville, VA
This action proposes to amend 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 would be removed from this airspace. This action also would update the geographic coordinates of the above airport and the University of Virginia Medical Center Heliport in Class D and E airspace listed in this proposal. This action would enhance the safety and management of Instrument Flight Rules (IFR) operations in the area.
Proposed Revocation of Class D Airspace; North, SC
This action proposes to remove Class D Airspace at North, SC, as the North Air Force Auxiliary Field Air Traffic Control Tower is no longer staffed, and controlled airspace is no longer required. This action would enhance the safety and airspace management in North, SC.
Proposed Establishment of Class D and E Airspace; Brookshire, TX
This action proposes to establish Class D and Class E airspace at Brookshire, TX. The establishment of an airport traffic control tower has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations within the airspace at Houston Executive Airport.
Proposed Amendment of Class D and Class E Airspace and Revocation of Class E Airspace; Roswell, NM
This action proposes to modify Class D airspace, Class E surface area airspace, and Class E airspace extending upward from 700 feet above the surface at Roswell, NM. This action is necessary due to advances Global Positioning System (GPS) capabilities and implementation of area navigation (RNAV) procedures at Roswell International Air Center, Roswell, NM. Additionally, this proposal would remove Class E airspace designated as an extension at Roswell International Air Center. This action would also update the name and geographic coordinates of the airport to coincide with the FAA's aeronautical database.
Amendment of Class D and Class E Airspace; Minot, ND
This action further corrects a final rule published in the Federal Register of February 4, 2016, and corrected in the Federal Register of March 3, 2016, amending the Class D and E airspace areas at Minot International Airport, Minot, ND. This correction adds part-time Notice to Airmen (NOTAM) language inadvertently removed to the Class E surface area description, and removes duplicative Class E extension airspace boundary information language from the Class E surface area description.
Proposed Amendment of Class C Airspace; Syracuse Hancock International Airport, NY
This action proposes to modify the Syracuse Hancock International Airport Class C airspace area by removing a cutout from the surface area that was put in place to accommodate operations at an airport that is now permanently closed.
Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. Models PC-12, PC-12/45, PC-12/47, and PC- 12/47E airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as incorrect installation instructions of the torlon plates in the airplane maintenance manual resulting in the incorrect installation of the torlon plates in the forward wing-to-fuselage attachment. We are issuing this proposed AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; Various Aircraft Equipped With BRP-Powertrain GmbH & Co KG 912 A Series Engine
We propose to adopt a new airworthiness directive (AD) for various aircraft equipped with a BRP-Powertrain GmbH & Co KG (formerly Rotax Aircraft Engines) 912 A series engine. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as a design change of the engine cylinder head temperature sensor without a concurrent revision of the engine model designation, the engine part number, or the cockpit indication to the pilot. We are issuing this proposed AD to require actions to address the unsafe condition on these products.
Airworthiness Directives; The Boeing Company Airplanes
We are revising an earlier proposed airworthiness directive (AD) for all Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. The NPRM proposed to require installing an automatic shutoff system for the center and auxiliary tank fuel boost pumps, as applicable; installing a placard in the airplane flight deck if necessary; replacing the P5-2 fuel system module assembly; installing the ``uncommanded ON'' (UCO) protection system for the fuel boost pumps; revising the airplane flight manual to advise the flightcrew of certain operating restrictions for airplanes equipped with an automatic shutoff system; and revising the maintenance program by incorporating new airworthiness limitations for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. The NPRM was prompted by fuel system reviews conducted by the manufacturer. This action revises the NPRM by proposing to require updated or additional actions that are necessary for certain airplane configurations. We are proposing this supplemental NPRM (SNPRM) to prevent operation of the center and auxiliary tank fuel boost pumps with continuous low pressure, which could lead to friction sparks or overheating in the fuel pump inlet that could create a potential ignition source inside the center and auxiliary fuel tanks. These conditions, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. Since these actions impose an additional burden over that proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.