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A B737-800 encountered severe turbulence at FL400 with no warning or radar returns and lost 500 ft during the recovery with no injuries.
| Attributes | |
| ACN | 1101882 |
| Time | |
| Date | 201307 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
At cruise altitude 40;000 ft; autopilot on; encountered severe turbulence. Dark night; no warning; no radar returns. Lost 500 ft during recovery. Seat belt sign was on. No one hurt onboard. Continued to our filed destination.
Original NASA ASRS Text
Title: A B737-800 encountered severe turbulence at FL400 with no warning or radar returns and lost 500 FT during the recovery with no injuries.
Narrative: At cruise altitude 40;000 FT; autopilot on; encountered severe turbulence. Dark night; no warning; no radar returns. Lost 500 FT during recovery. Seat belt sign was on. No one hurt onboard. Continued to our filed destination.
Data retrieved from NASA's ASRS site as of July 2013 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.