Special Conditions: Cirrus Design Corporation; Model SF50 Airplane; Installation of Rechargeable Lithium Batteries
These special conditions are issued for the Cirrus Design Corporation Model SF50 airplane. This airplane will have a novel or unusual design feature associated with the installation of a rechargeable lithium battery. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Amendment of Class D and Class E Airspace for the Following Pennsylvania Towns; Lancaster, PA; Reading, PA; and Williamsport, PA
This action amends Class E airspace designated as an extension to Class D airspace by removing the Notice to Airmen (NOTAM) part-time status at Lancaster Airport, Lancaster, PA; Reading Regional Airport/ Carl A. Spaatz Field, Reading, PA; and Williamsport Regional Airport, Williamsport, PA. This action also updates the geographic coordinates of these airports and the Picture Rocks navigation aid listed in the associated Class D and E airspace. This action enhances the safety and airspace management of instrument flight rules (IFR) operations at the airport. Also, this action replaces the outdated term Airport/Facility Directory with the term Chart Supplement in the associated Class D and E legal descriptions.
Proposed Amendment of Class E Airspace, Cambridge, MD
This action proposes to amend Class E airspace extending upward from 700 feet above the surface at Cambridge-Dorchester Regional Airport, Cambridge, MD, to accommodate airspace reconfiguration due to the decommissioning of the Cambridge non-directional radio beacon and cancellation of the NDB approach. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport. This action also would update the airport name and geographic coordinates of this airport.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 747-8 and 747-8F series airplanes. This proposed AD was prompted by reports of damaged vapor seals, block seals, and heat shield seals on the outboard pylons between the engine strut and aft fairing. This proposed AD would require installing new aft fairing vapor seals, heatshield seals, heatshield seal retainers, block seals and outboard lateral restraint access panels. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
We propose to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-200 Freighter, -200 and -300 series airplanes; and Airbus SAS Model A340-200, -300, -500, and -600 series airplanes. This proposed AD was prompted by reports of depressurization of hydraulic reservoirs caused by air leakage from the pressure relief valve (PRV) of the hydraulic reservoir (HR) due to the extrusion of the O-ring seal from certain HR PRVs. This proposed AD would require identifying the part number of the HR, and replacing and re-identifying affected HR PRVs. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; General Electric Company Turbofan Engines
We propose to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-2B67, -2B67B, and -2B67/P turbofan engines. This proposed AD was prompted by low-cycle fatigue (LCF) cracking of the fuel manifold leading to an engine fire. This proposed AD would require removal from service of certain fuel manifolds at the next engine shop visit and their replacement with parts eligible for installation. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Airplanes
We propose to supersede Airworthiness Directive (AD) 2017-22- 07, which applies to certain Airbus Model A319 series airplanes; Model A320-211, -212, -214, -231, -232, and -233 airplanes; and Model A321- 111, -112, -131, -211, -212, -213, -231, and -232 airplanes. AD 2017- 22-07 requires repetitive inspections of the frame forks, and corrective actions if necessary. AD 2017-22-07 also includes optional modifications that constitute terminating action. Since we issued AD 2017-22-07, an evaluation was done by the design approval holder (DAH) indicating that the frame forks and outer skin on the forward and aft cargo compartment doors are subject to widespread fatigue damage (WFD), and a determination was made that a modification of the frame forks must be accomplished. This proposed AD would require modifying certain forward and aft cargo compartment doors, and related investigative and corrective actions. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Leonardo S.p.A. Helicopters (Type Certificate Previously Held By Finmeccanica S.p.A., AgustaWestland S.p.A)
We are adopting a new airworthiness directive (AD) for Leonardo S.p.A. (Leonardo) Model A109E, A109S, and AW109SP helicopters with an oil cooler fan assembly (fan assembly) installed. This AD requires inspecting each oil cooler system pulley assembly (pulley assembly) bearing and replacing each fan assembly. This AD is prompted by reports of degraded pulley assembly bearings. The actions of this AD are intended to correct an unsafe condition on these products.