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Erj-175 captain reported the aircraft rolled 15 degrees in response to a wake turbulence encounter on arrival into lax in trail of a B777.
| Attributes | |
| ACN | 1472978 |
| Time | |
| Date | 201708 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | LAX.Airport |
| State Reference | CA |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 170/175 ER/LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Our flight was being vectored for a left base on a visual approach to runway 25L after passing sli and descending through 7000 ft. ATC advised us we were 7 miles behind a heavy 777; and I had placed our aircraft in a position that I thought would avoid wake turbulence. Wake turbulence rolled the aircraft approximately 15 degrees to the right before I disconnected the autopilot and leveled the wings. When wake turbulence rolled the aircraft back to the left; I kept the wings level. The first officer reported the encounter to ATC. He also checked with the flight attendants; who reported no injuries to themselves or to any passengers. The flight continued without incident; and I reported the encounter to [operations] after landing.
Original NASA ASRS Text
Title: ERJ-175 Captain reported the aircraft rolled 15 degrees in response to a wake turbulence encounter on arrival into LAX in trail of a B777.
Narrative: Our flight was being vectored for a left base on a visual approach to Runway 25L after passing SLI and descending through 7000 ft. ATC advised us we were 7 miles behind a heavy 777; and I had placed our aircraft in a position that I thought would avoid wake turbulence. Wake turbulence rolled the aircraft approximately 15 degrees to the right before I disconnected the autopilot and leveled the wings. When wake turbulence rolled the aircraft back to the left; I kept the wings level. The First Officer reported the encounter to ATC. He also checked with the flight attendants; who reported no injuries to themselves or to any passengers. The flight continued without incident; and I reported the encounter to [Operations] after landing.
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.