  We study the electronic transport of heterojunctions made of chiral
topological superconductors (TSCs) with $N$ chiral Majorana fermion modes and
quantum Hall insulators (QHIs) with integer Chern number $C$. In the weak
disorder regime, we show the two-terminal conductance $\sigma_{12}$ of a
QHI-TSC-QHI junction is generically non-quantized, but obeys a certain
distribution determined by $C$ and $N$, which is induced by random SO($N$)
rotations of chiral Majorana fermion mode basis on the TSC edges. Oppositely,
in the strong disorder regime, $\sigma_{12}$ tends to be a quantized value. We
conclude with a brief discussion on the fractionally quantized thermal
conductances of the junction.
