# SDR SIMA201111701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2011
- Submitted: April 27, 2011
- Operation: Air carrier
- Aircraft: [N641AE](https://openairdocs.org/aircraft/N641AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145191
- Aircraft time: 27,501 hours, 25,531 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Control Unit
- Part number: 3621001013
- Part serial: 4412
- Condition: Malfunctioned
- Location: Horiz Stab
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201111701

## Discrepancy

ON FLIGHT 2897 THE CREW REPORTED THAT DURING THE CLIMB, RECEIVED A MAIN PITCH TRIM INOPERABLE MESSAGE ON ECAS.  THE CAPTAIN ELECTED TO RETURN TO DFW.  THE AIRCRAFT LANDED WITHOUT INCIDENT.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED THE HORIZONTAL STABILIZER CONTROL UNIT AND FIRST OFFICER’S PITCH TRIM SWITCH.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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