This paper describes a methodology for the prediction of fan exhaust noise propagation. The linearized Euler equations are solved in the frequency domain using the Streamline Upwind Petrov Galerkin method. This technique enables a stable numerical solution of the linearized Euler equations. The far field radiation is calculated using a frequency domain permeable surface Ffowcs Williams-Hawkings solver. The solver is validated for a simple source in a stationary medium and a moving stream. Both analytical and numerical solutions are used as input on the acoustic data surface. Calculations are presented of fan exhaust noise radiation from the the Advanced Noise Control Facility at the NASA Glenn Research Center. The exhaust duct modal amplitude conditions are taken from experimental measurements. The mean flow in the fan exhaust stream is calculated using a commercial application, Star-CD, which gives the viscous mean flow on an unstructured grid. Comparison are made between the predicted and measured far field noise. The effect of both numerical parameters as well as operating conditions on the noise predictions are presented.