As the last training flight landed at Castle airport at 18:30 on December 31, 2018, the tinkling sound of the bell in the dispatch office symbolized the flight target in 2018 of Sierra Academy had been safely and successfully achieved. Management team of Sierra came to the airport to welcome the instructor and student pilot of the last flight. From regaining Part 141 certification from the Civil Aviation Administration of China at the beginning of 2018 to achieve flight hours of 10106.8 at the end of the year, this demonstrated the great effort and contributions from the management team and everyone involved. A big thanks to all of them! This is a new chapter and a new departure of Sierra, and we are full of expectations for the year of 2019.