Regional Jet 200 ER/LR (CRJ200)
Air Traffic Control Fully Certified
Communication Breakdown; Situational Awareness
ATC Issue All Types; Conflict Ground Conflict; Critical
Flight Crew Executed Go Around / Missed Approach
Human Factors
I was working Local 1. Maintenance requested to taxi from the main ramp to the maintenance hangar. I issued instructions to hold short of the runway. An Air Carrier was on final and cleared to land. Maintenance crossed the runway causing the landing Air Carrier to go-around. After review of this situation it was discovered that the read back of Maintenance was incorrect. The Controller needs to be more prudent and aware of readback errors.
Tower Controller described an event when maintenance taxiing an aircraft to the hangar crossed the runway; resulting in traffic on final going around.