Sita Air Flight 601 (ST601) was a Nepalese domestic passenger flight, operated by Sita Air, a Nepalese airliner with a Dornier 228 from Tribhuvan International Airport in Nepal's capital Kathmandu to Tenzing-Hillary Airport in Lukla, a popular tourist city in Nepal famous for trekking. On 28 September 2012, the Dornier Do 228 registered as 9N-AHA crashed while conducting an emergency landing to Kathmandu shortly after take off, killing all 19 people on board. Reports suggest that Flight 601 suffered a bird strike while taking off. Subsequent loss of control caused the plane to crash. It was the second deadliest air accident to occur in Nepal in 2012, and the last of at least ten fatal crashes since 2002.