First day at company, I must to learn and try to understand with background of Bangkok Airways and general aviation. Such as Bangkok Airway’s feet, ICAO Phonetic Alphabet, International Air Transport Association. My first work is tried to update and revise charts from Jeppensen Company. And I face a problem because have more data that made I confuse and not understand but have supervisor support me every time. So don’t make me worry with my work in first day. Pass on 1 month, I can understand about general aviation and can efficiency work with member in division. So supervisor assigned me to revise and update chart from Jeppensen Company, It is my main job at first month.