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Co-pilot reported problems with the aircraft not trimming correctly and diverted to another destination.
| Attributes | |
| ACN | 1728486 |
| Time | |
| Date | 202002 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 145 ER/LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Component | |
| Aircraft Component | Aileron |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 160 Flight Crew Total 1810 Flight Crew Type 260 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Immediately after takeoff from ZZZ; I noticed a strong tendency to roll right. I trimmed the ailerons to fly level which required the roll trim to be placed 1/4 of the way to full left trim which is more than usual. I also noticed the controls felt a little lighter than normal. Above 10000 ft and accelerating to 280 kts I thought the controls and especially the ailerons were much lighter than normal. I mentioned this to the captain and he hand flew for a little and agreed it did not feel normal. He gave the controls back to me and he ran through a QRH checklist and I slowed to 200 kts and the plane flew more normal. After communicating with dispatch; we diverted to ZZZ1 and flew around to burn off enough fuel to get under our max landing weight. The approach and landing was uneventful.because I was hand flying the plane during the climb; I noticed the unusually light aileron feel as well as the greater amount of roll trim required to keep the plane flying level. The captain hand flew for a bit and agreed.
Original NASA ASRS Text
Title: Co-Pilot reported problems with the aircraft not trimming correctly and diverted to another destination.
Narrative: Immediately after takeoff from ZZZ; I noticed a strong tendency to roll right. I trimmed the ailerons to fly level which required the roll trim to be placed 1/4 of the way to full left trim which is more than usual. I also noticed the controls felt a little lighter than normal. Above 10000 ft and accelerating to 280 kts I thought the controls and especially the ailerons were much lighter than normal. I mentioned this to the Captain and he hand flew for a little and agreed it did not feel normal. He gave the controls back to me and he ran through a QRH checklist and I slowed to 200 kts and the plane flew more normal. After communicating with dispatch; we diverted to ZZZ1 and flew around to burn off enough fuel to get under our max landing weight. The approach and landing was uneventful.Because I was hand flying the plane during the climb; I noticed the unusually light aileron feel as well as the greater amount of roll trim required to keep the plane flying level. The Captain hand flew for a bit and agreed.
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.