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Sct TRACON controller reported a loss of separation. Controller reported fusion radar contributed to the inability to catch the error sooner.
| Attributes | |
| ACN | 1447181 |
| Time | |
| Date | 201705 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | SCT.TRACON |
| State Reference | CA |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | Small Aircraft Low Wing 1 Eng Retractable Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 6 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
I was the radar controller sequencing multiple aircraft to the sna ILS final. I cleared aircraft X for an ILS approach at proper glide path altitude and intercept angle. Aircraft X was issued a speed control of 110 kts or faster for spacing. Aircraft initially went through the final and stated he was correcting. Aircraft then proceeded to over correct and turned almost opposite direction into aircraft Y being sequenced behind on a right base.fusion radar causes targets to jump around; especially for slow moving aircraft. This allows controllers to hesitate and observe if the track movement is false before taking action.
Original NASA ASRS Text
Title: SCT TRACON Controller reported a loss of separation. Controller reported FUSION Radar contributed to the inability to catch the error sooner.
Narrative: I was the radar controller sequencing multiple aircraft to the SNA ILS final. I cleared Aircraft X for an ILS approach at proper glide path altitude and intercept angle. Aircraft X was issued a speed control of 110 kts or faster for spacing. Aircraft initially went through the final and stated he was correcting. Aircraft then proceeded to over correct and turned almost opposite direction into Aircraft Y being sequenced behind on a right base.Fusion RADAR causes targets to jump around; especially for slow moving aircraft. This allows controllers to hesitate and observe if the track movement is false before taking action.
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.