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Prc tower controller reported a near midair collision when an aircraft turned too close to the traffic it was to follow.
| Attributes | |
| ACN | 1402372 |
| Time | |
| Date | 201611 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PRC.Tower |
| State Reference | AZ |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | None |
| Aircraft 2 | |
| Make Model Name | Small Aircraft Low Wing 2 Eng Retractable Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | None |
| Person 1 | |
| Function | Instructor Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 18 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC Deviation - Procedural Clearance Deviation - Track / Heading All Types |
| Miss Distance | Horizontal 0 Vertical 50 |
Narrative:
Aircraft Y was sequenced number 2 to follow aircraft X. They reported traffic in sight and were cleared touch and go. After aircraft Y turned final it was obvious that they had turned too close and the developmental training on LC1 sent aircraft Y around and told them to offset to the left. Aircraft X said something that I didn't hear and I asked them to repeat it. The instructor pilot said that aircraft Y had flown 50 feet below them on final; I said roger.during the OJT debrief the developmental said that the pilot used an acronym that she didn't know what it was. I asked if it was near midair collision and she said possibly. We listened to the tapes and that is what the pilot said so I notified management. The conflict happened on a one and a half mile final which is two and a half miles from the tower. It was hard to tell how close the planes got but I didn't see them overfly one another. If the pilot thought that they were that close to the preceding airplane then they should have initiated a go around. Unfortunately the falcon playback didn't track the aircraft on final to see what really happened.
Original NASA ASRS Text
Title: PRC Tower Controller reported a NMAC when an aircraft turned too close to the traffic it was to follow.
Narrative: Aircraft Y was sequenced number 2 to follow Aircraft X. They reported traffic in sight and were cleared touch and go. After Aircraft Y turned final it was obvious that they had turned too close and the Developmental training on LC1 sent Aircraft Y around and told them to offset to the left. Aircraft X said something that I didn't hear and I asked them to repeat it. The instructor pilot said that Aircraft Y had flown 50 feet below them on final; I said Roger.During the OJT debrief the Developmental said that the pilot used an acronym that she didn't know what it was. I asked if it was NMAC and she said possibly. We listened to the tapes and that is what the pilot said so I notified management. The conflict happened on a one and a half mile final which is two and a half miles from the tower. It was hard to tell how close the planes got but I didn't see them overfly one another. If the pilot thought that they were that close to the preceding airplane then they should have initiated a go around. Unfortunately the Falcon playback didn't track the aircraft on final to see what really happened.
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.