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An air carrier on approach to sea had a near miss with an aircraft in the bfi pattern while both aircraft were transiting a small area of airport airspace overlap.
| Attributes | |
| ACN | 1235311 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | SEA.Airport |
| State Reference | WA |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Next Generation Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Conflict NMAC Deviation - Altitude Excursion From Assigned Altitude Deviation - Altitude Overshoot |
| Miss Distance | Horizontal 0 Vertical 400 |
Narrative:
TCAS climb alert complied with during approach to 16L at sea. Conflict was VFR traffic at bfi. I called seatac tower after landing and he said this has happened several times in the past. He said there is a small area of overlap in the airspace used by sea and bfi traffic.
Original NASA ASRS Text
Title: An air carrier on approach to SEA had a near miss with an aircraft in the BFI pattern while both aircraft were transiting a small area of airport airspace overlap.
Narrative: TCAS Climb Alert complied with during approach to 16L at SEA. Conflict was VFR traffic at BFI. I called SEATAC tower after landing and he said this has happened several times in the past. He said there is a small area of overlap in the airspace used by SEA and BFI traffic.
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.