PSA has been flying the 22xx-25xx series of flight numbers since September. They got this equipment because of the Jet's for Job's 'extorsion', I mean protocol.
PSA is one of the three regional airlines (I know, soon to be four with the creation of MDA) wholly owned by USAirways Group. In return for PSA's acquiescence to the J4J extortion they are doubling their fleet size and upgrading their fleet to the CRJ-200.
