# SDR SIMA0763

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2001
- Submitted: April 17, 2001
- Operation: Air carrier
- Aircraft: [N726AE](https://openairdocs.org/aircraft/N726AE), registered now
- Make and model: Emb EMB-135LR
- Registry model: [EMB EMB-135LR](https://openairdocs.org/model/embraer-emb-135lr) (OpenAirDocs)
- Aircraft serial: 145314
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Control Unit
- Part number: 362200101
- Part serial: 0356
- Condition: Failed
- Location: Horizontal Stab
- Stage of operation: CL
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA0763

## Discrepancy

ORD - FLT 9754 - AFTER TAKEOFF, WITH PITCH TRIM SET AT +8, THE PILOT ATTEMPTED TO RETRIM.  PITCH TRIM MOVED FROM +8 TO +6 AND THEN FAILED.  BACKUP TRIM WORKED NORMAL.  MAINTENANCE REMOVED AND REPLACED THE HSCU.  OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RELEASED FOR A FUNCTIONAL CHECK FLIGHT.  FCF WAS SATISFACTORY AND WAS RETURNED TO SERVICE.  (M)

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