MD-11
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 125; Flight Crew Total 15600; Flight Crew Type 3100
Inflight Event / Encounter Loss Of Aircraft Control; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control
Procedure; Environment - Non Weather Related
Departed RKSI runway 33L behind a B777. During climb at 2000 MSL we encountered wake turbulence that caused our Aircraft to roll to the right with 30 [degree] bank followed by rapid roll left with 30 [degree] bank and rapid pitch down. First Officer was hand flying during encounter. I called 'stay off rudders' as Aircraft was rolling left and pitching down and took control of Aircraft. I neutralized the controls and about this time we flew out of encounter. Gave Aircraft back to First Officer and continued with flight.
Shortly after takeoff and following the SID (NOPIC1L/Rwy33L) [in trail] of a B777 our aircraft encountered wake turbulence at approximately 2000 AGL. Although no parameters or limitations were exceeded in this encounter; the aircraft did go beyond 30 degrees of bank more than once. As the First Officer; pilot flying; after initially unsuccessfully attempting to level the wings of our aircraft the continued snap rolling thereafter indicated that we were still in the preceding aircraft's wake. Adding a very limited degree of rudder in successive recovery attempts proved unsuccessful as well. I handed the aircraft to the captain for his input and following his attempts to level the wings; the wake turbulence encounter was brought to a safe and successful conclusion. The First Officer reestablished as the pilot flying and the flight continued to destination without further incident. Conclusion: A flight crew should be keenly aware of takeoff/in-flight separation and winds behind a B777. This incident has proven to me that the wake turbulence of a B777 may be more severe than other heavy aircraft.
MD-11F flight crew reported encountering wake turbulence at approximately 200 feet AGL after takeoff from RKSI in trail of a B777.