Javier Castillo is a EU Large Transport Aeroplanes Head of Section - European Aviation Safety Agency at EASA - European Union Aviation Safety Agency. He is proficient in German, English and French. Colleagues describe him as "Javier`s expertise is second to none on the area of EASA Part 21 regulations and requirements. He has helped me and my organisation Hamilton Sundstrand Shannon understand these regulations and how to ensure our procedures meet these requirements. He has also helped me understand how my role as a CVE contributes to these requirements. As we are a relatively new Part 21 DOA approved Organisation, we have a lot to learn and with Javier`s expertise I hope to continue to learn from him how Part 21 fits into our Aircraft Generator Overhaul and Repair business." and "Javier is a brilliant student. Both in solving difficult technical issues and building a team. Working with him has been a pleasure and it is worth having him as a friend."