Cpl. Andrew S. Black, a ground radio intermediate repairer with 2nd Marine Logistics Group (Forward), writes down serial numbers and other information about radios before performing maintenance and installing upgrades at Forward Operating Base Marjah, Afghanistan, July 28, 2011. Black is part of a three-man communication team that travels around Helmand province maintaining radios and other communication devices for explosive ordnance disposal teams. - Cpl. Andrew S. Black, a ground radio intermediate repairer with 2nd Marine Logistics Group (Forward), writes down serial numbers and other information about radios before performing maintenance and installing upgrades at Forward Operating Base Marjah, Afghanistan, July 28, 2011. Black is part of a three-man communication team that travels around Helmand province maintaining radios and other communication devices for explosive ordnance disposal teams.