# SDR MASA200500144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2005
- Submitted: March 28, 2005
- Operation: Air carrier
- Aircraft: N843MJ
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145478
- Aircraft time: 8,423 hours, 7,976 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Control Unit
- Part number: 355022002
- Part serial: 6476
- Condition: Inoperative
- Location: Mlg
- Part time: 6,852 hours, 6,476 cycles
- 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/MASA200500144

## Discrepancy

RETURNED TO THE FIELD FOR A LANDING GEAR AIR GROUND FAIL MESSAGE ON EICAS WHICH PREVENTED THE GEAR FROM BEING RETRACTED.  THE AIRCRAFT ALSO EXPERIENCED A DUAL REVERSER DISAGREE AT 2500 FEET.  MAINTENANCE IS CURRENTLY TROUBLESHOOTING.  MX REPLACED LANDING GEAR ELECTRONIC CONTROL UNIT.

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