The 374th Airlift Wing is a USAF C-130E/H unit located Yokota Air Base, Japan. It falls under the Fifth Air Force and United States Forces Japan (USFJ), both of which are tenent units on Yokota Air Base. The MAJCOM for the wing is Pacific Air Forces, which is the USAF command for bases in and around the Pacific Rim not in the continuous 48 states. Aircraft of the 374th Airlift Wing are flown by the 36th Airlift Squadron (36 AS) and maintained primarily by the 374th Aircraft Maintenance Squadron (374 AMXS). The wing also flies C-21 and UH-1 DV support aircraft that are maintained by contracted mechanics and flown by the 459th Airlift Squadron (459 AS). Also included in the arsenal of aircraft is the C-130 and the MC-130 equipped with the Special Operations package. The unit was previously stationed at Clark Air Base, Republic of the Philippines, but was moved after the eruption of Mount Pinatubo in 1991. Seal of the Air Force. ... The Fifth Air Force (5AF), with headquarters currently located at Yokota Air Base,Japan, is one of very few numbered air forces of the United States Air Force never to have been based in the United States itself. ... Emblem of the U.S. Air Forces Pacific The United States Pacific Air Forces (USPACAF or PACAF) is one of nine major U.S. Air Force commands and one of two located outside the continental United States, the other being U.S. Air Forces Europe. ... Clark Air Base is a former U.S. Air Force base on Luzon Island in the Philippines, now known as the Clark Special Economic Zone. ... Mount Pinatubo is an active volcano located on the island of Luzon in the Philippines, at the intersection of the borders of the provinces of Zambales, Tarlac, and Pampanga. ...