Staff Sgt. Tyler Tinney, center, 141st Maintenance Squadron aerospace propulsion mechanic, shows Brig. Gen. Gent Welsh, Washington Air National Guard commander, a KC-135 auxiliary power unit (APU) that is in the process of being repaired at Fairchild Air Force Base, Wash., Jan. 7, 2021. The 141st Air Refueling Wing has a cost savings initiative to repair APUs, generating a savings of $133,683 per unit.

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