Promotion list has 5 Keesler senior airmen Published Jan. 19, 2011 By Susan Griggs 81st Training Wing Public Affairs KEESLER AIR FORCE BASE, Miss. -- Five senior airmen have been selected for promotion to staff sergeant in the January in-system supplemental release announced Jan. 13. 81st Force Support Squadron -- Jonathan Brown. 81st Mission Support Group -- Sabine Andrew. 81st Security Forces Squadron -- Stephen Showmaker, Ryan Steelman and Shannon Tessmer.