  In an orientation $O$ of the graph $G$, an arc $e$ is deletable if and only
if $O-e$ is strongly connected. For a $3$-edge-connected graph $G$, the Frank
number is the minimum $k$ for which $G$ admits $k$ strongly connected
orientations such that for every edge $e$ of $G$ the corresponding arc is
deletable in at least one of the $k$ orientations. H\"orsch and Szigeti
conjectured the Frank number is at most $3$ for every $3$-edge-connected graph
$G$. We prove an upper bound of $5$, which improves the previous bound of $7$.
