Medium Large Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1.5
Situational Awareness
Conflict Airborne Conflict
Air Traffic Control Provided Assistance; Flight Crew Took Evasive Action
Aircraft; Airport; Human Factors; Procedure
Aircraft X on final for 10L at PDX. Aircraft Y doing pattern work at VUO on the VUO advisory frequency. I was working both frequencies; PDX Tower in my headset; and VUO advisory with the handset. I called the Cessna traffic to Aircraft X and he reported them in sight. I reported Aircraft X traffic on the Pearson advisory frequency. I noticed Aircraft X start climbing and he indicated he had an RA. I issued a climb to 3;000 FT and runway heading. Aircraft X was re-sequenced; and landed without incident.VUO (Pearson airport) is not in a safe proximity to the final at PDX when we are landing to the east. It's as simple as that. For political or other reasons it remains open. Every single Controller here thinks it's not a matter of if; but when there will be an accident. I participate in flight deck training every single opportunity I get. I've seen how busy the cockpit is on final; especially in adverse weather like today. To have traffic in your face less than 1/2 mile away and the same altitude at 3 mile final is absurd. I would recommend to close the airport or forbid pattern work or develop some well-defined departure corridor that stays low and northbound. Until we do something; we will continue to get RA's; costing the airlines money and putting lives in danger; all for what?
Portland Tower Controller reported an airborne conflict between an air carrier on approach to PDX and a VFR aircraft on approach to VUO airport.