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The crew experienced three hard rolls to the right and vibrations. They disconnected the autopilot and returned to the departure airport.
| Attributes | |
| ACN | 1276375 |
| Time | |
| Date | 201507 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 145 ER/LR |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
First officer was flying when the wing rolled right about three times. The autopilot was kicked off and the controls were transferred to the captain. The captain hand flew into ZZZ while the first officer helped with radios and check list. No [checklist] items were done because it was a random hard over and the nose seemed to yaw in the other direction. The crew was thinking that it was a possible spoiler non commanded deployment. The plane was landed safely and the gate was made. The plane was [written] up and taken to the hangar from maintenance. There were no EICAS messages associated with the event; but there were huge vibrations and at least three hard rolls to the right with the autopilot on.first officer not understanding if it was just his side or not gave the captain the controls and allowed him to fly the approach. The crew also verified twice approach clearance. Autopilot was turned off and not reused which trapped the hard roll over sensation.
Original NASA ASRS Text
Title: The crew experienced three hard rolls to the right and vibrations. They disconnected the autopilot and returned to the departure airport.
Narrative: First officer was flying when the wing rolled right about three times. The autopilot was kicked off and the controls were transferred to the Captain. The Captain hand flew into ZZZ while the first officer helped with radios and check list. No [checklist] items were done because it was a random hard over and the nose seemed to YAW in the other direction. The crew was thinking that it was a possible spoiler non commanded deployment. The plane was landed safely and the gate was made. The plane was [written] up and taken to the hangar from maintenance. There were no EICAS messages associated with the event; but there were huge vibrations and at least three hard rolls to the right with the autopilot on.First officer not understanding if it was just his side or not gave the Captain the controls and allowed him to fly the approach. The crew also verified twice approach clearance. Autopilot was turned off and not reused which trapped the hard roll over sensation.
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.