Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Empresa Brasileira de Aeronáutica S.A.) Airplanes

FAA / Federal Register · 2020-12880

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 parts and corrective actions if necessary, and revising the airworthiness limitation section of the existing maintenance manual or instructions for continued airworthiness to incorporate new airworthiness limitations. This AD also adds airplanes to the applicability. This AD was prompted by reports of corrosion in the mass-balance weights of the flight control surfaces, and a determination that new airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on these products.