while descending Motion_directional to lviv in overcast weather , it collided Catastrophe at 12:13 with a soviet air force antonov an-26 ( callsign unk , ) that had just taken off Departing from lviv .

while descending Motion_directional to lviv in overcast weather , it collided Catastrophe at 12:13 with a soviet air force antonov an-26 ( callsign unk , ) that had just taken off Departing from lviv .