Regional Jet 900 (CRJ900)
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Communication Breakdown
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control
Human Factors; Environment - Non Weather Related
We were being vectored for the ILS 18L into CLT. We had been on the MLLET arrival landing south; then given a 290 heading and altitude of 4;000 ft. On that heading; approximately 4 miles east from approach centerline and outside CAVVI; we encountered strong wake turbulence. We got two minor bumps; enough to realize it was wake; then suddenly the airplane rolled 30 to 40 degrees to the left. I recovered immediately by rolling back to the right; and the autopilot disconnected itself. There was no more wake after that. There was no altitude deviation; and I don't think heading deviated by more than 10 degrees. The turbulence was no more than moderate. We missed a radio call with vector to intercept during the event. We reported the event to Approach; and they gave us a 120 degree turn onto the localizer. Upon completing the turn; we reengaged the autopilot; and continued the approach and landing without incident. The flight attendants reported no injuries to themselves or passengers. [There were] A few minor bumps then the airplane rolled left. We were about 10 miles behind an Airbus A320. I don't know if the wake was from that aircraft; or if it blew over from Runway 18C; since winds were out of the southwest. There was a low overcast cloud layer; and stronger winds beneath the clouds; so conditions may have caused the wake to not dissipate as quickly as normal.
CRJ-900 First Officer reported encountering wake turbulence on arrival into CLT 10 miles in trail of an A320 that resulted in an uncommanded 30-40 degree roll.