The 171st found itself among the first units called to duty almost immediately after the 9/11 terrorist attacks in New York City , Washington D.C. and in its own backyard in southwestern Pennsylvania . At the time of the attacks , almost all of the wing 's aircraft were in a stand-down mode , while nearly all of its assigned aircraft were being converted to with the new Pacer-Crag cockpit and navigation upgrade
9/11 terrorist attacks
September 11 attacks
146th Air Refueling Squadron