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A11 TRACON controller reported an aircraft had an near midair collision with another aircraft the controller had just terminated radar with.
| Attributes | |
| ACN | 1746537 |
| Time | |
| Date | 202006 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | A11.TRACON |
| State Reference | AK |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Small Aircraft |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Route In Use | VFR Route |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Medium Transport |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Initial Climb |
| Route In Use | VFR Route |
| Flight Plan | VFR |
| Person 1 | |
| Function | Departure |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 1.5 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC |
Narrative:
Working radar; handoff; and another sector combined. Aircraft X; contacted me requesting VFR advisories. Aircraft X was radar identified eastbound at 1;400 feet. Aircraft Y departed on the north shore departure; VFR; was radar identified. I observed the conflict and issued traffic to both aircraft. Both aircraft responded that they were searching for traffic; neither reported traffic in sight. When aircraft Y reached the boundary of the class C; he requested termination of radar services and frequency change. I issued traffic to aircraft Y once more before terminating radar services. After the traffic passed; aircraft Y transmitted on frequency (I believe this was directed at aircraft X) that they didn't appreciate the maneuver performed by aircraft X as they passed each other.I was working multiple frequencies and did not have time to have a conversation over frequency about exactly what had happened. After aircraft X landed he reached out to me on frequency to indicate his concern about the event. He informed me that he was forced to perform an 'emergency climb' to avoid aircraft Y and stated that he 'almost hit him'. At the time prior to the event; both aircraft were outside of the class C airspace. During each aircraft's avoidance maneuvers; one or both of the aircraft may have penetrated the class C shelf.no recommended airspace or procedure changes. Event was a combination of frequency congestion; traffic complexity and volume; and possibly inability of pilots to see and avoid other aircraft.
Original NASA ASRS Text
Title: A11 TRACON Controller reported an aircraft had an NMAC with another aircraft the Controller had just terminated radar with.
Narrative: Working Radar; Handoff; and another sector combined. Aircraft X; contacted me requesting VFR advisories. Aircraft X was radar identified eastbound at 1;400 feet. Aircraft Y departed on the North Shore Departure; VFR; was radar identified. I observed the conflict and issued traffic to both aircraft. Both aircraft responded that they were searching for traffic; neither reported traffic in sight. When Aircraft Y reached the boundary of the Class C; he requested termination of radar services and frequency change. I issued traffic to Aircraft Y once more before terminating radar services. After the traffic passed; Aircraft Y transmitted on frequency (I believe this was directed at Aircraft X) that they didn't appreciate the maneuver performed by Aircraft X as they passed each other.I was working multiple frequencies and did not have time to have a conversation over frequency about exactly what had happened. After Aircraft X landed he reached out to me on frequency to indicate his concern about the event. He informed me that he was forced to perform an 'emergency climb' to avoid Aircraft Y and stated that he 'almost hit him'. At the time prior to the event; both aircraft were outside of the Class C airspace. During each aircraft's avoidance maneuvers; one or both of the aircraft may have penetrated the Class C shelf.No recommended airspace or procedure changes. Event was a combination of frequency congestion; traffic complexity and volume; and possibly inability of pilots to see and avoid other aircraft.
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.