B737 flight crew reported encountering wake turbulence departing RJAA/NRT airport in trail of a B767.
Synopsis
B737 flight crew reported encountering wake turbulence departing RJAA/NRT airport in trail of a B767.
Narrative
We were departing behind a 767. As soon as he started his roll we were cleared on to the runway to position and hold. The wind was reported directly down the runway. Within 1-2 minutes after the 767 lifted off we were cleared for takeoff. At approximately 300 AGL we experienced a significant rolling motion which the FO immediately put in corrective aileron control. The aircraft was at a 20 degree bank and he had approximately 45 degree yoke input to overcome the rolling moment. I commented we were experiencing wake turbulence and after a quick analysis determined we were not in the category that required calling upset. After several seconds the wake turbulence subsided. I reported the wake turbulence to the tower; including further clarification to make sure she understood. At approximately 3000AGL it happened again to the same extent as earlier. It subsided and I told the departure controller we needed any turn that would stop us from following the 767. A turn was assigned and we had no further issues. We debriefed enroute noting that separation responsibility has been taken from pilots and put more exclusively on ATC; although we did note we could have asked for a delay in our takeoff if we were concerned. I had no concerns prior to departure.
Second reporter narrative
We were cleared to Line up; and wait" as soon as preceding 767 begun its take off roll. We lined up at XA:07. Captain brought the aircraft to a stop and transferred controls to me. We were then cleared for takeoff; at which point we commenced our takeoff roll. We rotated at XA:09. Before 400ft; we experienced significant rolling motion and I aggressively corrected for this with up to 45 degree deflection of the yoke to keep wings level. The captain advised the tower before we switched over to departure. The disturbance occurred again before we reached 3;000ft and I corrected for it again with similar corrections. The captain then advised departure and we discussed the possibility of getting a heading away from the preceding aircraft's track. This was requested by the captain and we were vectored to a right heading toward IRNOK. Throughout all this we maintained adequate control of the aircraft and did not see the need to revert to Upset recovery maneuvers."
More incidents for this aircraft family →
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.