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B767 first officer reported a yaw oscillation after accelerating in climb that was identified as a yaw damper malfunction.
| Attributes | |
| ACN | 1494683 |
| Time | |
| Date | 201711 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Rudder Control System |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Passing approx 7000 ft slight oscillation of tail noticed. Passing 10000 ft ca (captain) accelerated normally to 300 KIAS and yaw oscillation intensified. Requested level off with ATC and analyzed problem as a yaw damper malfunction. Turned off right yaw damper and oscillation stopped. [Advised] ATC. Completed normal descent and before landing checklists as well as overweight landing checklist. Returned and landed. Soft landing approx 200 fpm vvi. Ca used full reverse thrust and brakes applied approximately 80 KIAS with 3500 ft remaining. Exited at end of runway; fire chief checked brake temp; approx 650 deg on left wheel. Recommended taxi and check again just prior to entering the ramp. Next brake check was 500 deg and decreasing. Taxied into ramp and no ramp personnel available to chock aircraft for over 5 minutes. Normal shutdown and deplaning of pax and crew once aircraft was able to be chocked.
Original NASA ASRS Text
Title: B767 First Officer reported a yaw oscillation after accelerating in climb that was identified as a yaw damper malfunction.
Narrative: Passing approx 7000 ft slight oscillation of tail noticed. Passing 10000 ft CA (Captain) accelerated normally to 300 KIAS and yaw oscillation intensified. Requested level off with ATC and analyzed problem as a yaw damper malfunction. Turned off right yaw damper and oscillation stopped. [Advised] ATC. Completed normal descent and before landing checklists as well as overweight landing checklist. Returned and landed. Soft landing approx 200 fpm VVI. CA used full reverse thrust and brakes applied approximately 80 KIAS with 3500 ft remaining. Exited at end of runway; fire chief checked brake temp; approx 650 deg on left wheel. Recommended taxi and check again just prior to entering the ramp. Next brake check was 500 deg and decreasing. Taxied into ramp and no ramp personnel available to chock aircraft for over 5 minutes. Normal shutdown and deplaning of pax and crew once aircraft was able to be chocked.
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.