The Ukrainian keymap, usr/share/vt/keymaps/ua.kbd, contains items named "fkey69" to "fkey92". What the keymap is expecting these to be isn't documented. I haven't found any evidence yet that the mappings concerned are a part of any standard or conventional Ukrainian keyboard layout.
FWIW fkey69 through fkey92 in the .ua keymaps originate in r52391.