501st CSW PME graduates Published Sept. 21, 2011 RAF ALCONBURY, United Kingdom -- The 501st Combat Support Wing congratulates the following Airmen for graduating professional military education: Airman Leadership School Senior Airman Jeremiah Niesen, 423rd Communications Squadron Senior Airman Christopher Tolliver, 423rd Communications Squadron Senior Airman David Butler, 422nd Communications Squadron NCO Academy Tech. Sgt. Richard Swafford, 501st Combat Support Wing Tech. Sgt. John McKenna, 423rd Communications Squadron Tech. Sgt. Gregory Lund, 423rd Civil Engineer Squadron Tech. Sgt. Vernon Hampton, 421st Air Base Squadron