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A TRACON controller reported an aircraft they had just shipped to tower went around in response to a TCAS/RA for an unidentified VFR target in the vicinity of the final approach course.
| Attributes | |
| ACN | 1656203 |
| Time | |
| Date | 201906 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | S46.TRACON |
| State Reference | WA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Route In Use | Other Instrument Approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Route In Use | None |
| Flight Plan | None |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 12.0 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
Narrative:
I was working the bfi final and turned aircraft X on to final and issued traffic that was VFR going outbound less than a 1/2 mile north of the localizer. I shipped the aircraft X to tower as he was now approaching their airspace. Aircraft X went around on about a 4 or 5 mile final. Luckily the traffic that was descending into the adjacent airport was 4 miles north the aircraft X or this could have been a very ugly situation. Our airspace needs to be amended to make sure VFR aircraft remain clear of the final. The proximity of the two airport's finals are too close for us to have to worry about TCAS RA's. We need the airspace around this airport's final approach course to be protected from the runway threshold to about 15 miles out north and south of the airport.
Original NASA ASRS Text
Title: A TRACON Controller reported an aircraft they had just shipped to Tower went around in response to a TCAS/RA for an unidentified VFR target in the vicinity of the Final Approach course.
Narrative: I was working the BFI final and turned Aircraft X on to final and issued traffic that was VFR going outbound less than a 1/2 mile north of the localizer. I shipped the Aircraft X to Tower as he was now approaching their airspace. Aircraft X went around on about a 4 or 5 mile final. Luckily the traffic that was descending into the adjacent airport was 4 miles north the Aircraft X or this could have been a very ugly situation. Our airspace needs to be amended to make sure VFR aircraft remain clear of the final. The proximity of the two airport's finals are too close for us to have to worry about TCAS RA'S. We need the airspace around this airport's final approach course to be protected from the runway threshold to about 15 miles out north and south of the airport.
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.