# SDR AU981520

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Beech C90
- Registry model: [Beech C90](https://openairdocs.org/model/beech-c90) (OpenAirDocs)
- Engine: Pwa PT6A21
- Propeller: Hartzl HCB3TN3
- System (JASC): [2216 · Autopilot Trim Servo](https://openairdocs.org/jasc/2216)
- Part: Servo
- Part number: 06500561
- Condition: Sticking
- Location: Autopilot
- Component: King, K5271
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU981520

## Discrepancy

(AUS) AUTOPILOT SERVO STICKING.  UNCOMMANDED ELEVATOR PITCH DOWN RESULTED IN SEVERE DAMAGE TO THE NLG WHEN THE AIRCRAFT IMPACTED THE GROUND DURING LANDING.

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