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ZFW controller reported an aircraft under his control reporting a near midair collision. The controller had traffic 9;000 feet above this aircraft and did not see any other traffic. Controller zoomed radar scope in and saw nothing. Seconds later the controller observed a primary target 3 miles south of the reporting aircraft.
| Attributes | |
| ACN | 1333415 |
| Time | |
| Date | 201602 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZFW.ARTCC |
| State Reference | TX |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Small Aircraft Low Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Transport Low Wing 2 Turboprop Eng |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Developmental |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC |
| Miss Distance | Horizontal 300 |
Narrative:
Aircraft X was eastbound at 7000 ft; aircraft Y was westbound at 16000 ft the targets merged but I didn't call traffic being separated by 9000 ft. Aircraft X asked if we had any traffic because he had a near mid-air with traffic within 300ft. I issued the traffic at 16000 that merged ranged in the display as far as I could and still nothing. About 30 seconds later a primary target (aircraft Z) appeared 3 miles behind aircraft X. The primary target was not displayed or hidden from sight. Make the targets a different color than the data blocks. Maybe if it was hidden under the data blocks it would show up a different color.
Original NASA ASRS Text
Title: ZFW Controller reported an aircraft under his control reporting a NMAC. The Controller had traffic 9;000 feet above this aircraft and did not see any other traffic. Controller zoomed radar scope in and saw nothing. Seconds later the Controller observed a primary target 3 miles south of the reporting aircraft.
Narrative: Aircraft X was eastbound at 7000 ft; Aircraft Y was westbound at 16000 ft the targets merged but I didn't call traffic being separated by 9000 ft. Aircraft X asked if we had any traffic because he had a near mid-air with traffic within 300ft. I issued the traffic at 16000 that merged ranged in the display as far as I could and still nothing. About 30 seconds later a primary target (Aircraft Z) appeared 3 miles behind Aircraft X. The primary target was not displayed or hidden from sight. Make the targets a different color than the data blocks. Maybe if it was hidden under the data blocks it would show up a different color.
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.