I always thought that the Dornier 328-300 was not certified for LCY because Sun Air always used leased in MHS turboprops on the BLL/HAM-services. But apparently the jets were certified in 2011.
Interesting that the MHS Dornier 328 stays on the HAM route. Is there no BACF/Eastern Saab 2000 available? That was the type BA announced when it launched the HAM route in its own right, and applying the BA fare structure (instead of the much higher Sun Air fares) to a Dornier 328 service certainly is a costly exercise.