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L30 TRACON controller reported a loss of separation due to not having an aircraft maintain visual separation while using fusion radar.
| Attributes | |
| ACN | 1449344 |
| Time | |
| Date | 201705 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | L30.TRACON |
| State Reference | NV |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach Departure |
| Qualification | Air Traffic Control Developmental |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
Narrative:
Our radar feed was fusion and every aircraft on the final went to isr [increased separation required]; I turned an aircraft base to stay 5 miles behind; the trailing aircraft got the lead in sight. I forgot to say maintain visual separation.we were advised that the L30 radar would be worked on for maintenance but it would not affect the operations. We lost the feed completely and it made all the data blocks 'isr' so we had to give an extra 2 miles to every aircraft. We don't have that much airspace here for descending traffic because of terrain. It made it difficult.
Original NASA ASRS Text
Title: L30 TRACON Controller reported a loss of separation due to not having an aircraft maintain visual separation while using FUSION Radar.
Narrative: Our radar feed was fusion and every aircraft on the final went to ISR [Increased Separation Required]; I turned an aircraft base to stay 5 miles behind; the trailing aircraft got the lead in sight. I forgot to say maintain visual separation.We were advised that the L30 radar would be worked on for maintenance but it would not affect the operations. We lost the feed completely and it made all the data blocks 'ISR' so we had to give an extra 2 miles to every aircraft. We don't have that much airspace here for descending traffic because of terrain. It made it difficult.
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.