“…There are two basic approaches in processing FDR data to infer related aerodynamic information that can provide more insides regarding flight accidents. The first approach requires suitable flight dynamic and sensor models and related partials [Weng, et al, 2006] while the second one relies on establishing correct relationship between input and output parameters using neural network based algorithm [Peyada and Ghosh, 2009;Singh, 2005;Torgerson, et al, 2006]. The outcomes of FDR data processing can be used to evaluate flight conditions.…”