# SDR SIMA20120812004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2012
- Submitted: August 13, 2012
- Operation: Air carrier
- Aircraft: [N905JH](https://openairdocs.org/aircraft/N905JH), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500892
- Aircraft time: 19,228 hours, 16,643 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Control Unit
- Part number: 3621001013
- Condition: Inoperative
- Location: Horizontal Stab
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20120812004

## Discrepancy

FLT 4038, CREW REPORTED PITCH TRIM BACKUP INOPERATIVE MASTER WARNING AND EICAS MESSAGE PRESENTED.  AIRCRAFT REMOVED FROM SERVICE.  REMOVED AND REPLACED HSCU IAW AMM 27-40-01.  OPS CHECKED GOOD.  AIRCRAFT RETURN TO SERVICE.

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