# SDR SIMA200430801

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 30, 2004
- Submitted: January 4, 2005
- Operation: Air carrier
- Aircraft: [N673AE](https://openairdocs.org/aircraft/N673AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145797
- Engine: Allsn AE3007A
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Control Unit
- Part number: 362100101J
- Part serial: 4509
- Condition: Malfunctioned
- Location: E/E Bay
- Stage of operation: DE
- 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/SIMA200430801

## Discrepancy

DURING DESCENT, CREW REPORTED FAILURE OF BOTH PITCH TRIM SYSTEMS.  AUTO-PILOT DID NOT DISCONNECT.  CREW FOLLOWED AOM PROCEDURES AND RECOVERED BACK UP TRIM.  AN EMERGENCY WAS DECLARED AND AIRCRAFT WAS LANDED WITH NO FURTHER INCIDENTS.  MAINTENANCE REMOVED AND REPLACED THE HORIZONTAL STABILIZER CONTROL UNIT IAW MM.  OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETUREND TO SERVICE.  (SW21200501219)

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