Air Pennsylvania was a commuter airline active from 1976 to 1982 and based in Reading, Pennsylvania. It was owned was Eugene F. Plum II, whose family also operated a flight school and other airlines - Perkiomen Airways (based in Reading, Pennsylvania and Sun International Airways (based in Puerto Rico).
http://www.flightglobal.com/pdfarchive/view/1975/1975%20-%200312.html Perkiomen Airways provides scheduled airmail services in Pennsylvania under contract to the US Post Office. A Beech 99 is used over the route Bradford-Du- Bois-Phillipsburg-Pittsburgh - Harrisburg. The airline also undertakes air-taxi and charter services with Piper aircraft from its base at General Carl A. Spaatz Field, Reading. Head Office: PO Box 3634, Reading, Pennsylvania 19605, USA. 9 215-376-6113. Chief Executive: Eugene F. Plum II, president. Fleet: One Beech 99, one Piper Twin Comanche, three Piper Aztec.
Those airports marked with an asterisk (*) are no longer served by commercial air service.\ Greater Pittsburgh International Airport was replaced by Pittsburgh International Airport, which is commercially serviced.