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Boeing 737-700 captain reported temporary loss of aircraft control during climb due to severe turbulence.
| Attributes | |
| ACN | 1530408 |
| Time | |
| Date | 201803 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZAU.ARTCC |
| State Reference | IL |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| 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) |
| Experience | Flight Crew Last 90 Days 359 |
| Events | |
| Anomaly | Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence |
Narrative:
Experienced severe turbulence during climb from approximately FL250 to FL310. Flying in clear air; below some higher clouds. I saw the airspeed start to increase as the wind speed rapidly increased as we climbed into the jet stream. We got a few moderate bumps; and then a short period of severe turbulence. Aircraft experienced a large roll input (similar to wake turbulence) that was not arrested with control wheel inputs. Estimate largest bank angle was approximately 45 to 60 degrees or more. This happened a couple of times. Winds at this time were about 170 knots on the nose. All flight attendants and passengers were seated. No known or reported injuries.
Original NASA ASRS Text
Title: Boeing 737-700 Captain reported temporary loss of aircraft control during climb due to severe turbulence.
Narrative: Experienced severe turbulence during climb from approximately FL250 to FL310. Flying in clear air; below some higher clouds. I saw the airspeed start to increase as the wind speed rapidly increased as we climbed into the jet stream. We got a few moderate bumps; and then a short period of severe turbulence. Aircraft experienced a large roll input (similar to wake turbulence) that was not arrested with control wheel inputs. Estimate largest bank angle was approximately 45 to 60 degrees or more. This happened a couple of times. Winds at this time were about 170 knots on the nose. All Flight Attendants and Passengers were seated. No known or reported injuries.
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.