B737 first officer reported three TA alerts while on approach to runway 10L at pdx due to pattern wo...

Attributes
ACN	1648302
Time
Date	201905
Local Time Of Day	1201-1800
Place
Locale Reference	PDX.Airport
State Reference	OR
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Route In Use	Other Traffic Pattern
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 161
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Narrative:

On approach to runway 10L at pdx; tower advised of traffic in the pattern at pearson field (vuo). This airport is directly in line with the approach path of 10L. On final; TCAS gave out three TA warnings.

Original NASA ASRS Text

Title: B737 First Officer reported three TA alerts while on approach to Runway 10L at PDX due to pattern work at VUO.

Narrative: On approach to Runway 10L at PDX; Tower advised of traffic in the pattern at Pearson Field (VUO). This airport is directly in line with the approach path of 10L. On final; TCAS gave out three TA warnings.

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.

B737 first officer reported three TA alerts while on approach to runway 10L at pdx due to pattern work at vuo.