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A319 first officer reported encountering wake turbulence 7-10 miles in trail of a B747 on arrival into iah.
| Attributes | |
| ACN | 1478906 |
| Time | |
| Date | 201709 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | IAH.Airport |
| State Reference | TX |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | STAR SKNRD4 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Flight Phase | Initial Approach |
| Route In Use | STAR SKNRD4 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Type 1400 |
| Events | |
| Anomaly | Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
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.
Original NASA ASRS Text
Title: A319 First Officer reported encountering wake turbulence 7-10 miles in trail of a B747 on arrival into IAH.
Narrative: 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.
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.