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B747 flight crew reported ATC questioned their track departing rjaa when they deviated slightly while in continuous wake turbulence.
| Attributes | |
| ACN | 1231399 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | RJAA.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID CUPID 1 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 20000 |
| Person 2 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
ATC asked us why we were left of course in the initial climbing turn after departing on 34L. The pilot flying flew the departure as published; however I did notice he was slightly left of course. It did not seem significant and we were in continuous wake turbulence from the preceding aircraft. Also; we were heavy and I believe he was limiting the bank angle somewhat due to weight and turbulence. I saw nothing alarming or concerning. I have been flying in and out of rjaa for 23 years and contribute this to an over zealous controller!
Original NASA ASRS Text
Title: B747 flight crew reported ATC questioned their track departing RJAA when they deviated slightly while in continuous wake turbulence.
Narrative: ATC asked us why we were left of course in the initial climbing turn after departing on 34L. The pilot flying flew the departure as published; however I did notice he was slightly left of course. It did not seem significant and we were in continuous wake turbulence from the preceding aircraft. Also; we were heavy and I believe he was limiting the bank angle somewhat due to weight and turbulence. I saw nothing alarming or concerning. I have been flying in and out of RJAA for 23 years and contribute this to an over zealous controller!
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.