Citation Excel (C560XL)
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance
Environment - Non Weather Related; Procedure; Weather
During vectors to RWY 22L visual approach we encountered wake turbulence from a preceding 757. The autopilot disconnected; we entered a 30 degree left bank and gained 150 ft in altitude. After recovering I attempted to reengage the autopilot but it would not engage. I advised the pax of the issue as he was concerned. We continued the vector and ATC changed the rwy assignment to 22R visual. We landed without incident. I advised the [Chief Pilot] on duty of the event. I was subsequently given a min rest overnight and had to [call in] fatigued; and was given 14 hours off duty. Both previous days were 12 hr duty and 5 leg days. We had adequate separation from the 757. I believe the event was caused by prevailing winds pushing the wake into our vector flight path.
CE-560XL Captain reported encountering wake turbulence on approach to JFK in trail of a B757.