Launch and Recovery
Airman 1st Class Dedrie Flowers, 9th Air Maintenance Squadron crew chief, takes an oil sample from a U-2 Dragon Lady after its high altitude flight at Beale Air Force Base, Calif., June 20, 2017. Preventative maintenance done by crew chiefs helps ensure any potential mechanical issues are mitigated and repaired.

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Photo by: Airman 1st Class Justin Parsons |  VIRIN: 170620-F-GZ700-605.JPG