Rumour has it that is was somewhat more complex situation than described in some social media.
The crew supposedly had major and lengthy problem/delay in obtaining Russian airspace entry clearance so there went the required fuel for destinatin - combining that with a minor tech defect which might be challenging to resolve at an off line station, even admin wise, on route, and also possibly issues with crew hours might have been the reason for the return.
Last edited by wiggy; 8th Jul 2016 at 16:50.