http://en.rian.ru/military_news/2013051 ... er-US.html
MOSCOW, May 19 (RIA Novosti) - A group of Russian military observers will carry out two inspection missions over the United States under the Open Skies Treaty between May 19 and June 3, the Russian Defense Ministry said.
The Russian inspectors, accompanied by U.S. officials, will be flying on board a Tupolev Tu-154 LK-1 plane from the Wright-Patterson Air Force Base in Ohio and the Travis Air Force Base in California.