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Bombardier dash 8-200 flight crew reported erratic torque indication during climb; resulting in a return to the departure airport.
| Attributes | |
| ACN | 1388010 |
| Time | |
| Date | 201609 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Dash 8-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Engine Torque Indication |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance |
Narrative:
On climb flow when bringing RPM back to 1050; #1 torque suddenly shot up to 118% and stuck. Reduced power to 96%. Power lever split was greater than 1 inch. Torque surged and dropped toward top and bottom of arc with needle oscillating. Directional control effected. Crew elected to shut down engine and return to [departure airport]. Upon opening the cowling it was discovered by maintenance that a torque cannon plug was unplugged.aircraft was [at another airport] previous night. It is unclear if the engine was worked on or not.
Original NASA ASRS Text
Title: Bombardier Dash 8-200 flight crew reported erratic torque indication during climb; resulting in a return to the departure airport.
Narrative: On climb flow when bringing RPM back to 1050; #1 torque suddenly shot up to 118% and stuck. Reduced power to 96%. Power lever split was greater than 1 inch. Torque surged and dropped toward top and bottom of arc with needle oscillating. Directional control effected. Crew elected to shut down engine and return to [departure airport]. Upon opening the cowling it was discovered by maintenance that a torque cannon plug was unplugged.Aircraft was [at another airport] previous night. It is unclear if the engine was worked on or not.
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.