![U.S. Air Force Airman 1st Class Ryan Cherry, 133rd Maintenance Squadron, washes a main landing gear drag pin in the magnetic particle unit in St. Paul, Minn., Feb. 26, 2017. Cherry is U.S. Air Force Airman 1st Class Ryan Cherry, 133rd Maintenance Squadron, washes a main landing gear drag pin in the magnetic particle unit in St. Paul, Minn., Feb. 26, 2017. Cherry is](https://c8.alamy.com/comp/RAPC1K/us-air-force-airman-1st-class-ryan-cherry-133rd-maintenance-squadron-washes-a-main-landing-gear-drag-pin-in-the-magnetic-particle-unit-in-st-paul-minn-feb-26-2017-cherry-is-part-of-the-non-destructive-inspection-team-which-uses-noninvasive-approaches-to-inspect-aircraft-gear-for-flaws-such-as-cracks-voids-and-heat-damage-on-aircraft-parts-utilizing-various-test-equipment-RAPC1K.jpg)
U.S. Air Force Airman 1st Class Ryan Cherry, 133rd Maintenance Squadron, washes a main landing gear drag pin in the magnetic particle unit in St. Paul, Minn., Feb. 26, 2017. Cherry is
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![U.S. Air Force Airman 1st Class Ryan Cherry, 133rd Maintenance Squadron, washes a main landing gear drag pin in the magnetic particle unit in St. Paul, Minn., Feb. 26, 2017. Cherry is U.S. Air Force Airman 1st Class Ryan Cherry, 133rd Maintenance Squadron, washes a main landing gear drag pin in the magnetic particle unit in St. Paul, Minn., Feb. 26, 2017. Cherry is](https://c8.alamy.com/comp/MPH0YM/us-air-force-airman-1st-class-ryan-cherry-133rd-maintenance-squadron-washes-a-main-landing-gear-drag-pin-in-the-magnetic-particle-unit-in-st-paul-minn-feb-26-2017-cherry-is-part-of-the-non-destructive-inspection-team-which-uses-noninvasive-approaches-to-inspect-aircraft-gear-for-flaws-such-as-cracks-voids-and-heat-damage-on-aircraft-parts-utilizing-various-test-equipment-us-air-national-guard-photo-by-tech-sgt-amy-m-lovgren-released-MPH0YM.jpg)