Dash 8 Series Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action
Procedure; Environment - Non Weather Related
On approach to runway 4R at EWR; we were level at 3000 ft and had been cleared for the ILS to 4L. We had intercepted the localizer and were maintaining an assigned speed of 170 kts. A 757 had been vectored ahead of us on the approach; and was approximately 5 nm ahead and 400 ft higher than us. We remarked that a larger aircraft ahead and above us presented a significant risk of encountering wake turbulence and that typically ATC would not put us in such a position. We began to feel a few bumps and I disconnected the autopilot. Seconds later; we were rolled suddenly to the left by wake turbulence. I leveled the wings and we requested a sidestep to runway 4L to avoid further turbulence. We landed without further incident on 4L.
Dash 8 Captain reported encountering wake turbulence on approach to EWR in trail of a B757.