Commercial Fixed Wing
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 10.0
Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Procedure; Company Policy; Aircraft; Airspace Structure
I was vectoring Aircraft X to the IAF for the RNAV 34L approach into PAE and there was [Aircraft Y] below him about 700 feet. I stopped Aircraft X at 2;500 feet and cleared him for the approach. Aircraft X didn't want to descend until Aircraft Y was clear. I reached out to PAE Tower to see if they were in communications with aircraft and luckily they were and were able to move aircraft east of Final. This situation routinely happens and places aircraft in an unsafe altitude and either having to be vectored around or we have to take other evasive actions. We need a more controlled airspace around PAE. With the increase in air carrier operations PAE needs a Class C or the Class B for SEA needs to be lowered to encompass around PAE's Class D.
S46 TRACON Controller reported an airborne conflict between an air carrier IFR aircraft on the RNAV 34L Approach to PAE airport and a VFR helicopter.