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An ERJ190 had a five degree uncommanded pitched up in cruise at FL380 which activated the stall warning. No equipment malfunctions were discover during an aircraft investigation.
| Attributes | |
| ACN | 922603 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 190/195 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Aircraft pitched up on autopilot approximately 5 degrees. Stick shaker activated autopilot disconnected. The captain and I both placed our hands on the yoke and reduced pitch to prevent a stall or upset. The captain hand flew the aircraft to destination without any more trouble. I would like very much to know why the event occurred.
Original NASA ASRS Text
Title: An ERJ190 had a five degree uncommanded pitched up in cruise at FL380 which activated the stall warning. No equipment malfunctions were discover during an aircraft investigation.
Narrative: Aircraft pitched up on autopilot approximately 5 degrees. Stick shaker activated autopilot disconnected. The Captain and I both placed our hands on the yoke and reduced pitch to prevent a stall or upset. The Captain hand flew the aircraft to destination without any more trouble. I would like very much to know why the event occurred.
Data retrieved from NASA's ASRS site as of April 2012 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.