Federal Motor Vehicle Safety Standard No. 141, Minimum Sound Requirements for Hybrid and Electric Vehicles
This document responds to petitions for reconsideration regarding NHTSA's December 2016 final rule which established new Federal motor vehicle safety standard (FMVSS) No. 141, ``Minimum sound for hybrid and electric vehicles.'' The agency received submissions from three petitioners requesting six discrete changes to the final rule, and also received technical questions from the petitioners. After consideration of the petitions and all supporting information, NHTSA has decided to grant the petitions for four of the discrete changes, deny one, and request comment in a separate document for the sixth proposed change.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes. This proposed AD was prompted by reports that additional areas of Boeing Material Specification (BMS) 8-39 flexible urethane foam were found during a routine inspection. This proposed AD would require an inspection for foam insulation on the dripshield above the overhead panel support structure and replacement if necessary. For certain airplanes, this proposed AD would also require replacement of foam insulation on the overhead panel support structure. We are proposing this AD to address the unsafe condition on these products.
Proposed Amendment of Class D Airspace and Class E Airspace; Biloxi, MS, and Gulfport, MS
This action proposes to amend Class D airspace, Class E surface airspace, Class E airspace designated as an extension (by removing NOTAM part-time status), and Class E airspace extending upward from 700 feet above the surface at Keesler Air Force Base (AFB), Biloxi, MS, and Gulfport-Biloxi International Airport, (formerly Gulfport-Biloxi Regional Airport), Gulfport, MS. The geographic coordinates for these airports and the Keesler TACAN navigation aid would be adjusted in the associated Class D and E airspace to match the FAA's aeronautical database. Also, an editorial change would be made to the Class E extension airspace legal descriptions replacing ``Airport/ Facility Directory'' with the term ``Chart Supplement'' for these airports. This action would enhance the safety and management of instrument flight rules (IFR) operations at these airports.
Proposed Revocation of Class E Airspace; Crows Landing, CA
This action proposes to remove Class E airspace extending upward from 1,200 feet above the surface at Crows Landing Airport, Crows Landing, CA. This airspace is wholly contained within the Sacramento en route airspace area and duplication is not necessary.
Amendment of Class E Airspace; Greenville, NC
This action amends Class E surface airspace at Greenville, NC, by removing Pitt County Memorial Hospital Heliport from the Class E surface area airspace associated with Pitt-Greenville Airport. Helicopters departing from the heliport must now receive clearance. Consequently, the cut out from Class E surface airspace is no longer required. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at the airport. This action also updates the geographic coordinates of the airport under Class E surface airspace and Class E airspace extending upward from 700 feet or more above the surface of the earth, to coincide with the FAA's aeronautical database.
Proposed Amendment of Class D Airspace and Class E Airspace; Erie, PA
This action proposes to amend Class D airspace, Class E surface airspace, and Class E airspace designated as an extension to a Class D surface area, by updating the name to Erie International Airport/Tom Ridge Field, Erie, PA. This action also proposes to amend Class E airspace extending upward from 700 feet above the surface in Erie, PA, by updating the name to St. Vincent Health Center Heliport. This action also would update the geographic coordinates of the airport and heliport, and would replace the outdated term ``Airport/Facility Directory'' with the term ``Chart Supplement'' in the legal descriptions of associated Class D and E airspace to match the FAA's aeronautical database.
Airworthiness Directives; Airbus Airplanes
We propose to supersede Airworthiness Directive (AD) 2016-12- 09, for certain Airbus Model A330-200, -200 Freighter, and -300 series airplanes; and Model A340-200 and -300 series airplanes. AD 2016-12-09 requires removing fasteners, doing a rototest inspection of fastener holes, installing new fasteners, oversizing the holes and doing rototest inspections for cracks if necessary, and repairing any cracking that was found. Since we issued AD 2016-12-09, an evaluation by the design approval holder (DAH) indicates that certain fastener holes are subject to widespread fatigue damage (WFD). This proposed AD would add airplanes to the effectivity, add repetitive inspections of the fastener holes at frame (FR) 40, and, for certain airplanes, require a modification, which terminates the inspections. We are proposing this AD to address the unsafe condition on these products.