Team Pete Airmen selected for below the zone promotion Published Sept. 21, 2009 PETERSON AIR FORCE BASE, Colo. -- The 21st Space Wing senior airman below the zone central base board for the third quarter was held Sept. 18. There were a total of six selected for promotion at the board. Members selected for BTZ are eligible for promotion between Oct. 1 and Dec. 31, 2009. The following Airmen were selected for promotion to senior airman: Airman 1st Class Gina Custer, 21st Communications Squadron Airman 1st Class Michael Handlos, 13th Air Support Operations Squadron Airman 1st Class Sarah Lyons, 21st Security Forces Squadron Airman 1st Class Achiel Pype, 21st Civil Engineer Squadron Airman 1st Class Levi Ragan, 21st Communications Squadron Airman 1st Class David Spade, 21st Medical Operations Squadron The 721st Security Forces Squadron conducted a large unit board Aug. 20, and one Airman was selected for promotion: Airman 1st Class Joshua Marsh, 721st Security Forces Squadron