# SDR SWIA971258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N156CA](https://openairdocs.org/aircraft/N156CA), registered now
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- Aircraft serial: 120156
- Engine: Pwa PW118
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Actuator
- Condition: Failed
- Location: Lt Elevator Trim
- Stage of operation: DE
- Nature of condition: F, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA971258

## Discrepancy

IN DESCENT FLIGHT MAP TRIM FAIL AP DISCONNECT.  AIRCRAFT PITCHED UP.  DIFFICULT TO CONTROL PITCH.  TO DESCEND, IT TOOK ALL NOSE DOWN TRIM AND FORWARD YOKE PRESSURE, (AP TRIM SEVO NOT ILLUMINATED WHEN LOOK AT IT).  INSPECTED AND FOUND LEFT ELEVATOR TRIM ACTUATOR JAMMING AND NOT ALLOWING FULL NOSE DOWN TRIM.  REMOVED AND REPLACED LEFT ELEVATOR TRIM ACTUATOR PER MM 27-32-02 AND ADJUSTED RIGHT ELEVATOR TRIM TAB.  AIRCRAFT TRIM OPERATIONAL CHECKS GOOD.

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