01 jul 2019: Cubana Tupolev Tu204 NAV sys down over Atlantic

[Stratofreighter]

...oops...
https://aviation-safety.net/wikibase/226736

During a positioning flight for heavy maintenance with the aeronautical manufacturer in Russia,
the aircraft suffered a loss of navigation systems above the North Atlantic.

It was vectoring direct to the VOR Varadero and later,
to the VOR Havana for a visual safe landing.

The aircraft was stored in Havana for almost two years,
retrieving it's airworthiness a few days ago.

https://aviation-safety.net/wikibase/226736
has more.