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B737-700 captain reported a problem with the rudder trim which eventually resulted in the flight diverting to an enroute field.
| Attributes | |
| ACN | 1430079 |
| Time | |
| Date | 201703 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Rudder Trim System |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 210 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Just leveled off at fl 390 and the aircraft had a yoke right trim to approximately 15 degrees to the right. I tried to trim the aircraft to the right with rudder trim and it did not trim. I tried momentary to the left and it did; tried back to the right no rudder trim to right. Control wheel had a right 15 degree right input. We looked in QRH; made sure all cbs were in and they were. Called dispatch; told them the problem and asked if they could get maintenance on also. They did. I ask if there was something simple we could check. They repeated the things we did already. Dispatch asked if we felt comfortable to continue to [our destination]; which is over water. No was the answer. Dispatch looked to find us a diversion. Contacted ATC and diverted. Taxied to gate.
Original NASA ASRS Text
Title: B737-700 Captain reported a problem with the rudder trim which eventually resulted in the flight diverting to an enroute field.
Narrative: Just leveled off at FL 390 and the aircraft had a yoke right trim to approximately 15 degrees to the right. I tried to trim the aircraft to the right with rudder trim and it did not trim. I tried momentary to the left and it did; tried back to the right no rudder trim to right. Control wheel had a right 15 degree right input. We looked in QRH; made sure all CBs were in and they were. Called Dispatch; told them the problem and asked if they could get Maintenance on also. They did. I ask if there was something simple we could check. They repeated the things we did already. Dispatch asked if we felt comfortable to continue to [our destination]; which is over water. No was the answer. Dispatch looked to find us a diversion. Contacted ATC and diverted. Taxied to gate.
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.