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A321 captain reported a flap overspeed resulted from a wake vortex encounter in climbout from phl behind an md-11.
| Attributes | |
| ACN | 1384559 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PHL.Airport |
| State Reference | PA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Speed All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Climbing out behind an md-11 we hit wake turbulence; aircraft pitched over; and the first officer; the flying pilot; disconnected the autopilot and raised the nose as our airspeed rapidly increased and oversped flaps. As the aircraft stabilized; retracted flaps on schedule and returned to normal flight. Apparently the md-11 was light and the A321 couldn't outclimb the wake. Only had about 2 minutes separation which normally would have been ok.
Original NASA ASRS Text
Title: A321 Captain reported a flap overspeed resulted from a wake vortex encounter in climbout from PHL behind an MD-11.
Narrative: Climbing out behind an MD-11 we hit wake turbulence; aircraft pitched over; and the First Officer; the flying pilot; disconnected the autopilot and raised the nose as our airspeed rapidly increased and oversped flaps. As the aircraft stabilized; retracted flaps on schedule and returned to normal flight. Apparently the MD-11 was light and the A321 couldn't outclimb the wake. Only had about 2 minutes separation which normally would have been ok.
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.