45 - DHC-6-100 N920R JHH Aircraft Inc., Lancaster, CA
Has filed for Houston-Southwest, TX (KAXH) to North Little Rock, AR (KORK) today (05-Sep-2012). This aircraft was acquired by Vancouver, BC based Gravitas Aviation on 11-May-2012 and has subsequently been undergoing maintenance in Houston. The departure to Little Rock today is perhaps inidicative of it being on delivery to the new lessor.
The other former Carson Services DHC-6 N239Z (MSN 239) which was acquired by Gravitas at the same time arrived at Houston-Southwest on 14-May-2012, and is presumably still present there.
504 - DHC-6-300 N504WJ Greenwood Group Inc., Ponca City, OK
Today (05-Sep-2012) the aircraft appears to be flying a post-maintenance test flight to the north of West Georgia Regional Airport, GA.