Ko da yake jami´an jirgin saman na Armenia sun ce rashin kyaun yanayi hade da hadari mai karfin gaske suka janyo faduwar jirgin, amma Sergei Kubinov shugaban sashen kudu na ma´aikatar kula da taimakon gaggawa ta Rasha ya ce shekarun jirgin da wasu dalilai na injuna ka iya haddasa hadarin.
