In 1991, Clark Air Base in the Philippines was evacuated due to the eruption of Mount Pinatubo. By 16 June, the evacuation order was issued and the first plane load of evacuees arrived at McChord on the 18th. In 1992, with the disestablishment of Military Airlift Command, McChord became an Air Mobility Command base. In November of that same year, two McChord C-141 Starlifters, participating in an air refueling training mission over north central Montana, collided in mid-air, killing all 13 crewmen.