The air echelon arrived in late October and the stage was set for entrance into combat.

The air echelon began overseas movement in early December 1943 via the southern ferry route.

After training was completed the air echelon was then deployed to Tunisia.

By the time the air echelons of the 331st and 502nd Bomb Groups arrived, both runways were complete.

Air echelon under attack during its arrival at Hickam on 7 December.

The air echelon flew there immediately while the ground echelon began the movement by road.

The air echelon was finally able to resume operations from Bisterne on May 14.

The air echelon departed the United Kingdom late June 1945.

The air echelon consisted on the members of the 393d Bombardment Squadron.

After the air echelon returned to England on 25 August the group resumed its cargo missions.

The air echelon flew to the UK via the southern ferry route.

Meanwhile, the air echelon had remained at Elser Field, until 21 September.

When the main air echelons of the 16th and 501st Bomb Groups arrived the south runway was complete, but the taxiways were not.

The air echelon arrived at Borinquen Field on 3 November 1940, two days after the ground troops.

The air echelons remained in the U.S. until inactivated.

Air echelon training in Algeria for several weeks before joining the remainder of the group in Italy.

The air echelon staged at Morrison Field, Florida.

By mid-August the air echelon was in place at Deversoir, Egypt.

Deployed ground echelon personnel also assisted in construction, prior to the arrival of their group's air echelon.

After war began between the United States and Japan, the unit's air echelon operated Australia.

The air echelon consisted of:

The air echelon departed Attlebridge in mid-June 1945.

Air Echelon of squadrons with assigned aircraft remained in United States until inactivation.

The air echelon had welcomed the arrival of the ground echelon for they had been flying daily, without rest, since their departure from the states.

Air echelon operated from Brisbane, Australia, 10-c.