Iran has managed to restore a Su-24 fighter-bomber back to service after many years of grounding at Shiraz air base.
By Shahram Sharifi (Own work) [GFDL or CC BY-SA 4.0-3.0-2.5-2.0-1.0], via Wikimedia Commons
The news report said Iran invested over 35,000 manpower hours in the aircraft and succeeded on Jan. 14.