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B737-800 flight crew reported encountering wake turbulence 3.5 miles in trail of a B777 on approach to sfo.
| Attributes | |
| ACN | 1308637 |
| Time | |
| Date | 201511 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Norcal put us on the approach 3 miles behind a 777 with no wind. I slowed as much as I could to stay way behind it and open the gap. However his approach speed was very slow; and I couldn't get back much further that 3.5 miles. We hit his wake at about 100 feet; it was manageable yet rough. Made a nice landing despite flopping around. I had briefed [the first officer] if it got too rough I was going around and reviewed the GA procedure.
Original NASA ASRS Text
Title: B737-800 flight crew reported encountering wake turbulence 3.5 miles in trail of a B777 on approach to SFO.
Narrative: NorCal put us on the approach 3 miles behind a 777 with no wind. I slowed as much as I could to stay way behind it and open the gap. However his approach speed was very slow; and I couldn't get back much further that 3.5 miles. We hit his wake at about 100 feet; it was manageable yet rough. Made a nice landing despite flopping around. I had briefed [the First Officer] if it got too rough I was going around and reviewed the GA procedure.
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.