Experts estimate the approximate value of these components at more than 5,2 mln US dollars, which would be enough to restore the airworthiness of at least four helicopters MOSCOW, June 9. /TASS/. Russia's Federal Security Service (FSB) has thwarted the smuggling of Mi-8 and Mi-17 helicopter components to Ukraine by six citizens of Russia, Ukraine and countries of the Middle East, the FSB Public Relations Center reported. "The FSB has identified and stopped the unauthorized actions of an