<< >> NASA ASRS Report 1676106, August 2019

Air carrier first officer reported receiving an RA on final approach for an unidentified VFR target at an adjacent airport.

Attributes
ACN	1676106
Time
Date	201908
Local Time Of Day	1201-1800
Place
Locale Reference	SEA.Airport
State Reference	WA
Environment
Light	Daylight
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Function	First Officer
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Conflict Airborne Conflict

Narrative:

On final approach into sea; we received an RA (resolution advisory) from traffic below us in the bfi VFR traffic pattern. Seattle tower said that they reported the traffic to us but both the captain and I never heard the call for traffic from tower. We were established on the localizer and glideslope for the ILS 16R into sea. The captain responded to the RA and we continued the approach uneventfully.

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Original NASA ASRS Text

Title: Air carrier First Officer reported receiving an RA on final approach for an unidentified VFR target at an adjacent airport.

Narrative: On final approach into SEA; we received an RA (Resolution Advisory) from traffic below us in the BFI VFR traffic pattern. Seattle Tower said that they reported the traffic to us but both the Captain and I never heard the call for traffic from Tower. We were established on the localizer and glideslope for the ILS 16R into SEA. The Captain responded to the RA and we continued the approach uneventfully.

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.