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A cessna 680 captain reports that during climbout the pilot flying stated the horizontal stab trim was indicating full nose down and he was still applying forward pressure on the yoke. Captain leveled aircraft and maintained 200 knots. Advancing power to increase airspeed beyond 200 knots required an increase in forward pressure on control yoke. Maintenance found linkage to one of the trim tabs was broken.
| Attributes | |
| ACN | 872678 |
| Time | |
| Date | 201002 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Cessna Citation Sovereign (C680) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Horizontal Stabilizer Trim |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Engineer |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 22100 Flight Crew Type 1100 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Deviation - Procedural Maintenance Inflight Event / Encounter Other / Unknown |
Narrative:
Picked up airplane at a service repair center in ZZZ after a five day check. We were returning to home base. After takeoff; the pilot flying stated that something wasn't right. He transferred controls to me stating that the stabilizer trim was indicating full nose down; and he was still applying forward pressure on the yoke. I assumed control climbing out of 3000 feet for 4000 feet. Airspeed was between 180-200 knots. I leveled at 4000 feet and did not notice any problem until advancing the power to increase airspeed to 250 knots. There was an increase in required forward pressure. I reduced the power and maintained approximately 200 knots. The control pressures seemed normal at that speed. I transferred control back to the pilot flying and suggested that we engage the autopilot and increase the airspeed. The autopilot disconnected when speed was increased. We maintained less than 200 knots and landed normally at ZZZ1 where the problem was noted in the maintenance log.
Original NASA ASRS Text
Title: A Cessna 680 Captain reports that during climbout the pilot flying stated the horizontal stab trim was indicating full nose down and he was still applying forward pressure on the yoke. Captain leveled aircraft and maintained 200 knots. Advancing power to increase airspeed beyond 200 knots required an increase in forward pressure on control yoke. Maintenance found linkage to one of the trim tabs was broken.
Narrative: Picked up airplane at a service repair center in ZZZ after a five day check. We were returning to home base. After takeoff; the pilot flying stated that something wasn't right. He transferred controls to me stating that the stabilizer trim was indicating full nose down; and he was still applying forward pressure on the yoke. I assumed control climbing out of 3000 feet for 4000 feet. Airspeed was between 180-200 knots. I leveled at 4000 feet and did not notice any problem until advancing the power to increase airspeed to 250 knots. There was an increase in required forward pressure. I reduced the power and maintained approximately 200 knots. The control pressures seemed normal at that speed. I transferred control back to the pilot flying and suggested that we engage the autopilot and increase the airspeed. The autopilot disconnected when speed was increased. We maintained less than 200 knots and landed normally at ZZZ1 where the problem was noted in the maintenance log.
Data retrieved from NASA's ASRS site as of April 2012 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.