/usr/lib/x86_64-linux-gnu/libfa.so.1 is in libaugeas0 1.8.0-1+deb9u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libfa.so.1.4.4
/usr/lib/x86_64-linux-gnu/libfa.so.1.4.4