Croatia has demanded that Ukraine take back four MiG-21s that the latter had delivered in 2014.
By Jerry Gunner (Flickr: MiG-21UMD “Mongol” of Croatian AF) [CC BY 2.0], via Wikimedia Commons
Ukrspecexport was given a contract to overhaul seven Croatian MiG-21s and the supply another five refurbished jets. These aircraft were supposed to be flying till 2023 but Croatia was unable to operate them after 2016.
Croatia informed Ukraine last week that they take back the jets – 131, 132, 134, and 135. Ukraine will have to replace them with other jets that come with state guarantees.
Tough reliability on 30+ year old jets.