# SDR SIMA201108301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2011
- Submitted: March 24, 2011
- Operation: Air carrier
- Aircraft: [N691AE](https://openairdocs.org/aircraft/N691AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500860
- Aircraft time: 16,525 hours, 14,492 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pressure Switch
- Part number: 1540048PH
- Part serial: 01635
- Condition: Inoperative
- Location: Rudder
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201108301

## Discrepancy

ON FLIGHT 3649 THE CREW REPORTED THAT DURING THE CLIMB  AT 2,000 FEET RECEIVED A "RUDDER SYS 1-2 INOP" AND YAW DAMPER FAIL MESSAGES.  A 'THUD' AND RUDDER PEDAL MOVEMENT NOTED WITH THE INITIAL FAILURE AND WITH SYSTEM 1 DURING THE AIRCRAFT OPERATIONS MANUAL CHECKLIST.  AN EMERGENCY WAS DECLARED AND THE CREW ELECTED TO RETURN TO MIA.  THE AIRCRAFT LANDED WITHOUT INCIDENT.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  TROUBLESHOT T/S AS PER FIM 27-22-00-810-804-A PAGE 202 STEP 1 AND 3.  REPLACED RUDDER PRESSURE SWITCH AS PER EMB AMM 27-23-04  OPERATIONAL AND LEAK CHECKS WERE GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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