Airman 1st Class Brennen Hankins, 773d Civil Engineer Squadron electrical systems journeyman, fixes a semi-thrush threshold light on Joint Base Elmendorf-Richardson, Alaska, Sept. 22, 2014. Currently, JBER’s airfield lighting is going through an upgrade from fluorescent to light emitting diode lighting, and has been in the process of upgrades for 10 years. (U.S Air Force photo/Airman 1st Class Tammie Ramsouer)
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