The Leading Edge The Leading Edge (TLE) is a CAAS publication that shares developments in aviation safety and thought pieces from subject matter experts regularly with our readers and stakeholders. Read On Subscribe Feedback Previous Issues Select Year All 2023 2022 2021 2020 2019 2018 2017 Find out more about CAAS' safety promotion initiatives Safety Promotion Click Here Safety Charter Charter for a Strong and Positive Safety Culture in Singapore Click Here Aviation Safety Forum Click here Tell Sarah Spot a safety hazard? Tell Sarah now! Click here