AD Directory
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The free Federal Register–sourced AD reference for general aviation. Search by AD number, make, or keyword. Checked every weekday.
10,463 results
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd. & Co KG (RRD) Trent XWB-75, XWB- 79, XWB-79B, and XWB-84 model turbofan engines. This AD was prompted by analysis by the manufacturer of the low-pressure compressor (LPC) outlet guide vane (OGV) assembly and LPC OGV outer mount ring assembly. The analysis predicted that when the front engine mount is in the fail- safe con…
Airworthiness Directives; Leonardo S.p.A. Helicopters
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.A. Model A119 and AW119 MKII helicopters. This AD requires inspecting for movement and the tightening torque of the tail rotor (T/R) plug, the installation of the outboard and inboard faces of the T/R duplex bearing, and the condition of the T/R plug threads, nut threads, and T/R duplex bearing. Depending on the inspection results, this…
Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Empresa Brasileira de Aeronáutica S.A.) Airplanes
The FAA is superseding airworthiness directive (AD) 2011-20-01 for certain Empresa Brasileira de Aeron[aacute]utica S.A. (now Embraer S.A.) Model EMB-505 airplanes. AD 2011-20-01 required replacing the bolts that attach the balance mass weights to the elevator structure. This AD requires inspections of the mass-balance weights of the elevators, ailerons, and rudder (flight control surfaces) and their attachment part…