Various studies in 1970s revealed that human errors in aircraft accidents could be classified in three broad categories based on behavior approach (Diehl, 1991). These included procedural, perceptual motor, and decisional task. Procedural task which could lead to pilot error include mismanagement of vehicle subsystem and configuration problems and other related errors like retracting the landing gear rather than flaps or just overlooking the provided checklist items. Perceptual motor tasks comprise of tasks like manipulation of flight controls and throttles which would lead to errors like shooting a glide-slope indication and many others. Majority of pilot errors were however attributed to decision task which can range from flight planning to hazard evaluation (Aviation Knowledge, 2010). These would result to errors like failure to properly delegate tasks during emergencies. Analysis of fatal accidents which could be attributed to pilot errors revealed that perceptual motor and decisional procedures were major contributors of pilot errors.