Ongoing construction at Bury St. Edmunds forced two of the group's squadrons to locate at RAF Rattlesden, and the group's aircraft did not arrive until late in March 1943. Once operational, the 322d flew two low-level bombing operations from Bury St. Edmunds. The first, on 14 May when it dispatched 12 planes for a minimum-level attack on an electrical generating plant near Ijtnuiden. This was the first operational combat mission flown by B-26s.
