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A321 flight crew reported three wake encounters on climbout in trail of a B777-200 that induced roll and prompted the crew to deviate from the assigned course.
| Attributes | |
| ACN | 1213942 |
| Time | |
| Date | 201410 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | LAX.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID HOLTZ |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 13600 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Climbing above 10000 feet east of pevee on the holtz 9 departure; seven miles in trail of a B777-200 on the same route; we had two moderate encounters with wake turbulence with large variations in roll. This necessitated us leaving the assigned track and required alternate heading instructions from ATC. We subsequently encountered two more wakes which required us to change headings again. Winds at altitude were from 050 at 5 knots indicated. The A321 will not out climb heavy jets when in trail on the same route.
Original NASA ASRS Text
Title: A321 flight crew reported three wake encounters on climbout in trail of a B777-200 that induced roll and prompted the crew to deviate from the assigned course.
Narrative: Climbing above 10000 feet east of PEVEE on the HOLTZ 9 departure; seven miles in trail of a B777-200 on the same route; we had two moderate encounters with wake turbulence with large variations in roll. This necessitated us leaving the assigned track and required alternate heading instructions from ATC. We subsequently encountered two more wakes which required us to change headings again. Winds at altitude were from 050 at 5 knots indicated. The A321 will not out climb heavy jets when in trail on the same route.
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.