# SDR SIMA200922402

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2009
- Submitted: August 12, 2009
- Operation: Air carrier
- Aircraft: [N609DP](https://openairdocs.org/aircraft/N609DP), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145069
- Aircraft time: 26,645 hours, 22,278 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Relay
- Part number: M835366022M
- Condition: Damaged
- Location: Warning Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200922402

## Discrepancy

ON FLIGHT 4122 - THE CREW DECLARED AN EMERGENCY INTO ORD DUE TO AN AIR GROUND FAIL MESSAGE AND A THRUST REVERSER DISAGREE MESSAGE.  AIRCRAFT REMOVED FROM SERVICE.  REMOVED AND REPLACED RELAY K0352 LEFT RELAY SUPPORT IAW EMB AMM 20-13-02 FUNCTIONAL CHECK FLIGHT SATISFACTORY.  AIRCRAFT RETURNED TO SERVICE.

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