© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA.Mixed phase ice accretion prediction capability has been added to TAICE in the framework of High Altitude Ice Crystals (HAIC) FP7 European project. Up to now, Turkish Aerospace Industries (TAI) has implemented models related to ice crystal accretion calculation to the existing ice accumulation prediction program. Drag coefficient prediction, heat transfer & phase change, impingement, and accretion models are among these models. In this study, COX and NASA-National Research Council of Canada (NRC) experimental test conditions and results for mixed phase icing conditions have been used for validation purposes. Implemented model results including erosion effects are examined with these two experimental data sets.