On January 29, 1986, a silent reddish sphere roughly three meters across crashed into Height 611 near Dalnegorsk, Primorsky Krai, burning for two days. Scientists at the USSR Academy of Sciences Far Eastern Branch recovered metallic residue with gold concentrations 250 times local levels and 17-micrometer mesh threads inconsistent with known 1980s technology.

Hundreds of townspeople witnessed the impact. Dr. Valeri Dvuzhilni of the Far Eastern Committee for Anomalous Phenomena recovered approximately 30 metallic droplets containing nickel, chromium, aluminum, and gold wire filaments interwoven in 17-micrometer threads. Chemist A. Kulikov of the Academy of Sciences Chemistry Institute, Far Eastern Department, found some samples resembling glass carbon but noted purposeful design. V. Skavinsky of the Institute of Geology and Geophysics (Siberian Branch, Soviet Academy of Sciences) confirmed the specimens did not match local geology. The site remained anomalous for three years, affecting electronic equipment.