Regional Jet 700 ER/LR (CRJ700)
Flight Crew Air Transport Pilot (ATP)
Inflight Event / Encounter Loss Of Aircraft Control; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control; Flight Crew Took Evasive Action
Environment - Non Weather Related; Procedure
We encountered 2 to 3 separate wake turbulence events following a 757 into Atlanta. The first one was approximately 8 miles in trail and it was very strong rolling motions that needed the autopilot to be disconnected going through 13;300 on the arrival. The second one was a very strong rolling motion and we informed ATC we needed more separation from the aircraft in front of us. They then slowed us to 180 knots on downwind. We were still 5 miles separation at this point and we received the 3rd wake turbulence which was the strongest rolling tendency. ATC wanted us to expedite our descent so we could keep our position in line and stay behind the 757. We declined; so they re-sequenced us.Reduced separation from 757 aircraft; in my opinion; is not a safe strategy. This was the strongest wake turbulence I have ever felt and it was very unnerving. ATC needs to be more receptive to wake turbulence [reports] and when you have already stated that you have had several severe wake turbulence events following an aircraft they should not try and get you to expedite your descent to stay in trail of the aircraft that has already caused the wake turbulence.
CRJ-700 FO reported encountering 'very strong' wake turbulence on approach to ATL eight miles in trail of a B757. Reporter would like to see a more positive response from ATC when wake encounters are reported.