Robinson R44 crash near Terney, Primorsky Krai, Russia

A Robinson R44 helicopter engaged in forest fire monitoring disappeared on June 21, 2026 along the route Terney–Mount Nika–Amgu–Edinka in the Terney District of Primorsky Krai, Russia, with a female pilot and an observer on board. The aircraft and crew remain missing; an active search lasting until August 31 failed to locate the helicopter or its wreckage in the rugged mountainous taiga terrain, and the Interstate Aviation Committee has opened an investigation classifying the disappearance as an aviation incident.