Traci Holton, Professional Engineer (PE), spoke with the McMinnville Noon Rotary Club about the uniquely complex challenges of the $1.4 billion overhaul of BNA that is occurring while the airport itself remains operational. Holton, the chief engineer of the BNA Metropolitan Nashville Airport Authority, was introduced by Rotarian Bill Zechman who likened the task to the prospects of re-building an engine while it’s still running.