Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
Distraction; Confusion; Communication Breakdown; Situational Awareness; Workload; Time Pressure
ATC Issue All Types; Conflict NMAC; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action
Aircraft; Human Factors; Procedure
I had a taxi back on Runway 04L and told him to expedite to the end to exit the runway as Aircraft X was on final behind him. Aircraft Y was transitioning to the base of the tower via the GECKO1 transition. Aircraft X for whatever reason decided to go-around even though spacing was going to exist. He informed me of this decision short final. After completing a scan I noticed that Aircraft Y was 0.5 NM northwest of the field about to cross. Aircraft X was passing the numbers at this time and so I issued a traffic alert to both aircraft. Aircraft Y took evasive action avoiding collision and I would estimate the aircraft passed within 100 feet of each other. Neither pilot informed me they were going to file a NMAC.
FFZ Tower Controller reported a Near Mid Air Collision that happened while working local. An aircraft executed an unexpected go-around with another aircraft transitioning the airspace and got too close at the departure end of the runway.