Test cell
Engine test cell operator Mark Young, left, and inspector Bob Fischer check a TF33/P103 engine of a B-52H in Test Cell 8, Bldg. 3703. The cell is identical to a nearby unused cell of the 547th Propulsion Maintenance Group’s Engine Test and Verification where an accidental release of oxygen-depleting fire suppressant sent workers clearing the building and emergency personnel responding to the alarm. (Air Force photo by Margo Wright)