New Delhi, Oct. 17 -- The Aircraft Accident Investigation Bureau (AAIB) has recommended at least 50 hours of flying alongside an experienced pilot in hilly terrain before helicopter pilots are cleared for single-pilot operations in such regions, following its investigation into the fatal Kedarnath crash that killed seven people in June 2025. In its final report on the Aryan Aviation Bell 407 helicopter crash near Gaurikund on June 15, 2025, the AAIB urged the Directorate General of Civil Aviation (DGCA) to introduce minimum experience requirements for pilots operating in high-altitude areas such as the Kedarnath valley. "The dynamic nature of the weather phenomenon and the topography in such a region requires special skills along with adequ...