Federal Aviation Administration April 4, 2019 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4158 turbofan engines. This AD was prompted by several reports of high cycle fatigue (HCF) cracks found in the fuel nozzle supply manifold. This AD requires replacement of the affected fuel nozzles and fuel nozzle manifold supply assemblies with parts eligible for installation. This AD also requires installation of new brackets and clamps on the fuel nozzle supply manifold assemblies. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; International Aero Engines Turbofan Engines
We are superseding Airworthiness Directive (AD) 2018-24-01 for certain International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1- JM, and PW1122G-JM turbofan engines. AD 2018-24-01 required removing certain low-pressure turbine (LPT) 1st- and 3rd-stage disks from service and replacing with a part eligible for installation. This AD retains the same requirements as AD 2018-24-01. This AD was prompted by the discovery of incorrect serial numbers in the identification of LPT disks in AD 2018-24-01. We are issuing this AD to address the unsafe condition on these products.
Membership in the National Parks Overflights Advisory Group
By Federal Register notice on February 19, 2019 the National Park Service (NPS) and the Federal Aviation Administration (FAA) invited interested persons to apply to fill two current openings on the National Parks Overflights Advisory Group (NPOAG) to represent general aviation, and Native American interests. This notice informs the public of the selection made for the vacancy representing general aviation and invites persons interested in serving on the NPOAG to apply for the still current opening representing Native American concerns.
Airworthiness Directives; Bombardier, Inc., Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-102, -103, and -106 airplanes; DHC-8-200 series airplanes; and DHC-8-300 series airplanes. This proposed AD was prompted by the reported loss of an elevator spring tab balance weight prior to takeoff. This proposed AD would require inspecting the two balance weights and the two hinge arms on each elevator spring tab, and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
We are adopting 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 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 AD requires replacing affected PRVs and re- identifying affected HRs. We are issuing this AD to address the unsafe condition on these products.