# SDR 20010129CW001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2000
- Submitted: January 29, 2001
- Operation: General aviation
- Aircraft: [N909MA](https://openairdocs.org/aircraft/N909MA), registered now
- Make and model: Cessna T206H
- Registry model: [Cessna T206H](https://openairdocs.org/model/cessna-t206h) (OpenAirDocs)
- Aircraft serial: T20608097
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Servo
- Part number: 065001782200
- Part serial: 2361
- Condition: Inoperative
- Location: Fuselage
- Part time: 249 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20010129CW001

## Discrepancy

THE PILOT INITIALLY COMPLAINED THAT THE AUTOPILOT WOULD NOT MAINTAIN CONSTANT VERTICAL SPEED.  THIS ESCALLATED INTO A FULL NOSE DOWN TRIM RUNAWAY.  THE PILOT RECOGNIZED THE PROBLEM AND RECOVERED FROM DIVE.  THE PITCH SERVO WAS CHANGED AND THE PROBLEM DID NOT RECUR.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.