A319
Flight Crew Air Transport Pilot (ATP)
Flight Crew Type 1400
Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance; Flight Crew Took Evasive Action
Environment - Non Weather Related; Procedure
SKNRD 4 arrival into IAH; approximately 10 miles outside of ZOEEE; descending through approximately 8000 ft; aircraft encountered moderate wake turbulence. Aircraft buffeted and rolled right 15-20 degrees. Buffeting continued and aircraft began to roll with moderate force back to the left. Pilot flying immediately disconnected the autopilot; set TOGA thrust and pitched aircraft 15-18 degrees nose up while attempting to level the wings with side stick input. As aircraft approached 30 degrees of bank to the left; we began to clear the wake. PM immediately notified ATC that we were maneuvering for a wake turbulence encounter. ATC responded 'ok'. We leveled at 9300 ft; reestablished automation and continued so as to cross ZOEEE at 7000 ft. PM queried ATC as to what type of aircraft we were following. ATC responded 'a 747'. They then asked us to slow for spacing. This was the first time we were notified that we were following a heavy. As best I can remember; our noted distance behind the B747 after the encounter was between 7-10 miles. Winds were light and variable. PM checked in with cabin crew and they verified that there were no injuries; but that passengers were frightened by the encounter.
A319 First Officer reported encountering wake turbulence 7-10 miles in trail of a B747 on arrival into IAH.