What could well be an Ukraine air traffic controller already in June 2014 warned that the Ukraine air space should be closed instead of closing to Fightlevel 260. This could mean Ukraine state was already aware of Russian BUKs in East Ukraine as early as June 2014.
He warned in a post at Pprune.org which is a forum used by airline pilots, air traffic controllers and others working in the airline industry.
Ukrainian officials should close whole airspace over eastern part. now is closed up to fl260. Russian terrorists can easily hit passenger a/c.
His first message on Pprune.org dates from November 2008. Since then he posted 49 messages on Pprune.org. From the content of his posts it does look like he knows a lot about air traffic control in Ukraine. For example he seems to know Rostov and Dnipropetrosk’s ATC centers are using Spanish Indra ATC systems. So he could well be an air traffic controller.
At July 14 an Antonov 26 of the Ukraine Air Force was shot down near the Russian border. Till today we do not know what weapon was used. Ukraine state claims the aircraft flew at 6500 meters altitude. Too high for manpads. So according Ukraine the aircraft was shot down by Russian equipment. This could be an air to air or surface to air missile.
Because of this shotdown, the minimum flight altitude for passenger aircraft flying over Eastern Ukraine was again raised,now to flightlevel 320. (32.000 feet)
Till today nobody kn0ws why it was decided to increase the minimum safe altitide to FL32o instead of closing the airspace. Any weapon capable of reaching aircraft flying at 6500 can easily reach flying aircraft flying at FL320 and higher!
Ukraine state did not answer this crucial question nor did the Dutch government.