Research on Risk Evaluation Using RNP Technology for Operation into High Elevation Airports with Critical Terrain

On the basis of the preceding risk identification and the risk evaluation index systems, this paper applied AHP to determine the weight of risk evaluation indexes and fuzzy comprehensive evaluation to obtain the risk level under the condition of RNP technology operation into Nyingchi airport from the four aspects of human risk factor, equipment risk factor, environment risk factor and management risk factor. In order to improve the plateau flight safety, it made further efforts to put forward measures of risk control and prevention for plateau flight based on the risk evaluation results.