They have 7 727's, plus they have a subsidiary (Boston Maine Airways) who operate 2 Casa 212's. Pan Am Services division does 727 repairs and is the FBO at Pease. They claim they will be operating 121 service between Sanford, Gary and Portsmouth by fall.
See my page www.varsity-nj.com/panam for more info including the tail #'s and MSN's of the planes.
Pan Am Services is www.panamservices.com
Boston-Maine is www.bmairways.com