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Den tower controller observed an aircraft overshoot the final approach course and had to issue parallel runway traffic go-around instructions.
| Attributes | |
| ACN | 1466556 |
| Time | |
| Date | 201707 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | DEN.Tower |
| State Reference | CO |
| Aircraft 1 | |
| Make Model Name | Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb Final Approach |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 129 |
| Flight Phase | Final Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 3.5 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
Aircraft X checked on the frequency for the left runway. I issued a landing clearance and issued parallel traffic which was aircraft Y. Aircraft Y checked on and I received a low altitude alert. I was issuing the low altitude alert; calling traffic about aircraft X and issuing control instructions as aircraft Y started going through their final all simultaneously. As aircraft Y was now directly under aircraft X I knew it was safe as aircraft X was more than a 1000 foot above aircraft Y. Not knowing what aircraft Y was going to do; I elected to send aircraft X around and issued those instructions. Aircraft Y maneuvered as instructed for the correct runway. Aircraft X was vectored for another approach.adhere to letter of agreement to off load foreign carriers to a runway complex without conflicting traffic. A final controller should ensure that foreign carriers; unfamiliar pilots; or anyone in question comply with instructions for final approach course intercept before communications transfer when there is possible conflicting traffic.
Original NASA ASRS Text
Title: DEN Tower Controller observed an aircraft overshoot the final approach course and had to issue parallel runway traffic go-around instructions.
Narrative: Aircraft X checked on the frequency for the left runway. I issued a landing clearance and issued parallel traffic which was Aircraft Y. Aircraft Y checked on and I received a low altitude alert. I was issuing the low altitude alert; calling traffic about Aircraft X and issuing control instructions as Aircraft Y started going through their final all simultaneously. As Aircraft Y was now directly under Aircraft X I knew it was safe as Aircraft X was more than a 1000 foot above Aircraft Y. Not knowing what Aircraft Y was going to do; I elected to send Aircraft X around and issued those instructions. Aircraft Y maneuvered as instructed for the correct runway. Aircraft X was vectored for another approach.Adhere to Letter of Agreement to off load foreign carriers to a runway complex without conflicting traffic. A final controller should ensure that foreign carriers; unfamiliar pilots; or anyone in question comply with instructions for final approach course intercept before communications transfer when there is possible conflicting traffic.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.