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Saint louis TRACON controller reported that the saint louis ASR and mode south was released to maintenance. An aircraft reported a near mid air collision with a VFR aircraft whose mode C was fluctuating.
| Attributes | |
| ACN | 1460379 |
| Time | |
| Date | 201706 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | T75.TRACON |
| State Reference | MO |
| Aircraft 1 | |
| Make Model Name | PA-32 Cherokee Six/Lance/Saratoga/6X |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 14 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC |
Narrative:
Aircraft X was an overflight at 6000' and reported a near midair collision with a VFR aircraft orbiting 35nm north of stl at 6000'. At the time the stl ASR & mode south was out to maintenance (otm). The VFR aircraft in question mode C was constantly fluctuating.constantly call traffic regardless of reported mode C.
Original NASA ASRS Text
Title: Saint Louis TRACON Controller reported that the Saint Louis ASR and Mode S was released to maintenance. An aircraft reported a Near Mid Air Collision with a VFR aircraft whose Mode C was fluctuating.
Narrative: Aircraft X was an overflight at 6000' and reported a NMAC with a VFR aircraft orbiting 35nm North of STL at 6000'. At the time the STL ASR & Mode S was Out to Maintenance (OTM). The VFR aircraft in question Mode C was constantly fluctuating.Constantly call traffic regardless of reported Mode C.
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.