C-130 aircrew continues mission Published April 8, 2020 413th Flight Test Group Public Affairs The 339th Flight Test Squadron at Robins Air Force Base, Georgia, conducts flight tests of C-130H Hercules and other aircraft after depot maintenance to ensure their airworthiness to return to service. The 339th recently completed flight tests of a C-130 assigned to the 910th Airlift Wing at Youngstown Air Reserve Station, Ohio.