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B737-800 captain reported encountering 'extreme' wake turbulence at approximately 1;200 feet AGL departing dfw in trail of an A321.
| Attributes | |
| ACN | 1407328 |
| Time | |
| Date | 201612 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | DFW.Airport |
| State Reference | TX |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| 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:
On initial climb out from runway 18L; at approximately 1200 AGL; after calling for 'VNAV'; we encountered extreme wake turbulence from the preceding A321. I recovered the aircraft. The rest of the departure and climb out was normal. Dfw tower cleared us onto the runway; line up and wait; after the A321 was given takeoff clearance. Once into position; tower cleared us to takeoff; while the A321 was still on the runway. I elected to wait 15-30 seconds for the A321 to become airborne before applying takeoff thrust; trying to ensure adequate spacing behind the A321. After the upset event I should have allowed even more time behind the A321.this is the second major aircraft upset I have experienced since the new FAA wake turbulence separations standards went into effect. The first was behind a B757. The FAA needs to return to the 2 minute spacing behind B757 and A321 aircraft. I will not put myself into this position again.
Original NASA ASRS Text
Title: B737-800 Captain reported encountering 'extreme' wake turbulence at approximately 1;200 feet AGL departing DFW in trail of an A321.
Narrative: On initial climb out from runway 18L; at approximately 1200 AGL; after calling for 'VNAV'; we encountered extreme wake turbulence from the preceding A321. I recovered the aircraft. The rest of the departure and climb out was normal. DFW TWR cleared us onto the runway; line up and wait; after the A321 was given takeoff clearance. Once into position; Tower cleared us to takeoff; while the A321 was still on the runway. I elected to wait 15-30 seconds for the A321 to become airborne before applying takeoff thrust; trying to ensure adequate spacing behind the A321. After the upset event I should have allowed even more time behind the A321.This is the second major aircraft upset I have experienced since the new FAA wake turbulence separations standards went into effect. The first was behind a B757. The FAA needs to return to the 2 minute spacing behind B757 and A321 aircraft. I will not put myself into this position again.
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.