Airman 1st Class Alma Buenrostro, 28th Maintenance Squadron aerospace propulsion technician, removes bolts from a mixing duct during maintenance at Ellsworth Air Force Base, S.D., March 21, 2012. The propulsion shop was installing a mixing duct, flame holder, and augmenter fuel nozzles to make the engine serviceable.
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ELLSWORTH AIR FORCE BASE, SD, US
This work, Engines keep B-1 flying [Image 1 of 3], by SrA Alystria Maurer, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.