# SDR SWIA200413146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2004
- Submitted: April 23, 2004
- Operation: Air carrier
- Aircraft: N58733
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120197
- Aircraft time: 24,361 hours, 31,511 cycles
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Actuator
- Part number: 52991
- Condition: Malfunctioned
- Location: Elevator Trim
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200413146

## Discrepancy

ELEVATOR TRIM ACTUATOR FREEZES UP AT HIGH ALTITUDES.  SIGNIFICANT SNAP-BACK WITH BOTH MANUAL AND ELECTRIC TRIM INPUTS, 17,000 FT AND HIGHER.  REPLACED LEFT AND RIGHT ELEVATOR TRIM ACTUATORS WITH SERVICEABLE UNITS IAW AMM 27-32-02.  OPS CHECK GOOD.  P/N: 5299-1.

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