37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 1634719 |
Time | |
Date | 201904 |
Local Time Of Day | 0601-1200 |
Place | |
Locale Reference | ATL.Airport |
State Reference | GA |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
Operating Under FAR Part | Part 121 |
Flight Phase | Climb |
Route In Use | SID KAJIN2 |
Flight Plan | IFR |
Aircraft 2 | |
Make Model Name | A320 |
Operating Under FAR Part | Part 121 |
Flight Phase | Initial Climb |
Flight Plan | IFR |
Person 1 | |
Function | Captain Pilot Not Flying |
Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
Events | |
Anomaly | Deviation - Speed All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
We departed atl runway 8R on the KAJIN2 RNAV departure behind an airbus A320. We were issued and accepted takeoff clearance as the preceding A320 was lifting off. We immediately started our takeoff roll. Once airborne and climbing through approximately 1;300 feet AGL and accelerating through about 190 KIAS; we flew through the wake turbulence of the A320. We rolled left approximately 25-30 degrees. As we rolled; the pilot flying; first officer; disconnected the autopilot and assumed manual control. Our airspeed reduced to about 185 KIAS and the airspeed trend vector dropped under our indicated speed by about 10 knots. Simultaneously; the stick shaker momentarily activated. The first officer (first officer) immediately lowered the pitch and rolled the wings level. The stick shaker activated for less than one second. Once wings level; the airspeed began to increase again. We continued to accelerate; climb; and resumed the departure. We had no other issues. The cause of the momentary stick shaker was a result of the increased load factor from the roll and the simultaneous slight degradation of airspeed. All of this was due to the wake turbulence off of the A320. After the event; the mfd wind read out showed we had a tail wind. Perhaps a more off-set departure route would help mitigate wake turbulence occurrences when a tail wind is present during the initial climb portion of a departure.
Original NASA ASRS Text
Title: CRJ-200 Captain reported encountering wake turbulence departing ATL in trail of an A320. Reporter suggested different procedures might help when departing in tailwind conditions.
Narrative: We departed ATL Runway 8R on the KAJIN2 RNAV Departure behind an Airbus A320. We were issued and accepted takeoff clearance as the preceding A320 was lifting off. We immediately started our takeoff roll. Once airborne and climbing through approximately 1;300 feet AGL and accelerating through about 190 KIAS; we flew through the wake turbulence of the A320. We rolled left approximately 25-30 degrees. As we rolled; the pilot flying; First Officer; disconnected the autopilot and assumed manual control. Our airspeed reduced to about 185 KIAS and the airspeed trend vector dropped under our indicated speed by about 10 knots. Simultaneously; the stick shaker momentarily activated. The FO (First Officer) immediately lowered the pitch and rolled the wings level. The stick shaker activated for less than one second. Once wings level; the airspeed began to increase again. We continued to accelerate; climb; and resumed the departure. We had no other issues. The cause of the momentary stick shaker was a result of the increased load factor from the roll and the simultaneous slight degradation of airspeed. All of this was due to the wake turbulence off of the A320. After the event; the MFD wind read out showed we had a tail wind. Perhaps a more off-set departure route would help mitigate wake turbulence occurrences when a tail wind is present during the initial climb portion of a departure.
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.