/usr/share/terminfo/t/tty5420-w-rv-n is in ncurses-term 6.1-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/terminfo/t/../a/att4415-w-rv-n
/usr/share/terminfo/t/../a/att4415-w-rv-n