Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Engineer
Flight Crew Last 90 Days 70; Flight Crew Total 5450; Flight Crew Type 1368
Conflict NMAC
Air Traffic Control Issued Advisory / Alert; Flight Crew Took Evasive Action
Human Factors; Airspace Structure
Aircrew was cleared an ILS 16R approach at PAE in daylight VMC. At JUGBA; Seattle Approach warned us of VFR traffic; a Cessna 172; heading in a direction to cross the ILS approach. The traffic was not in communication with Approach. However; the traffic was in communication with the Tower. After JUGBA; Seattle asked us to break off the approach. We were just about to; however; the traffic turned towards the airplane; and an RA occurred. The C172 looked closer than 500 feet. We descended and turned away from the C172. Once the traffic was behind us; we resumed the flight with no other events.
B737 Captain on the ILS 16R to PAE reports a NMAC with a C172 just inside JUGBA. The C172 was talking to the Tower and the B737 was talking to Approach. A TCAS RA is received and complied with along with a turn away from the traffic.