The command chief of the 20th Fighter Wing at Shaw Air Force Base, South Carolina, was removed from his position last month.
Base officials were "exploring every possibility to get the answers we need to prevent this from happening again."
Air Education and Training Command (AETC) officials are monitoring developments at Shaw.
The airmen died at local hospitals, where they were taken after they completed their fitness tests on separate days
Senior Airman Aaron Hall, 30, died Saturday morning from health complications at Prisma Health Richland Hospital in Columbia.
The 20th Fighter Wing commander said Capt. Zoe Kotnik had "made mistakes."
Trying to leverage "Captain Marvel" movie, the Air Force names its first female commander of a single-aircraft demo team.
Roughly 400 airmen are selected for 365-day extended deployments on an annual basis.
Two South Carolina-based fighter pilots are being honored for saving 88 soldiers in Afghanistan.
Military families and retirees receiving care through 38 military hospitals nationwide will soon be forced to go off-base.
Lawmakers expressed astonishment at the testimony of military top investigators.
The Marine Corps is now consolidating the command by moving all its operators to North Carolina.
Capt. Stuart Shippee proposed to his girlfriend Marie Lisman by launching a weather balloon into space with a ring.
Journalists posted photos of the patches, prompting questions about whether the uniform devices violated DoD policy.
