# SDR SIMA20131030012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 30, 2013
- Submitted: October 31, 2013
- 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: 22,548 hours, 19,274 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Electronic Unit
- Part number: 355022003
- Part serial: 5146
- Condition: Failed
- Location: Mlg
- Part time: 20,943 hours, 18,251 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20131030012

## Discrepancy

GEAR WOULD NOT RETRACT AFTER TAKEOFF.  DURING RETURN TO DEPARTURE, RECEIVED "TAKEOFF,  FLAPS, GEAR, TRIM" AURAL WARNING.  EXECUTED A NORMAL LANDING AND IMMEDIATELY AFTER TOUCHDOWN RECEIVED LG AIR/GROUND FAIL AND IC 1-2 WOW INOP EICAS MESSAGES.  AFTER PARKING TRIED TO CONNECT GPU BUT PLANE WASN'T SEEING IT ON ELECTRIC PAGE - SHUTDOWN NR 1 ENGINE AND LOST CAPT PFD + FO MFD. ON SHUTTING DOWN NR 2 ENGINE THE F/O PFD.  R & R LANDING GEAR ELECTRONIC UNIT IAW AMM 32-32-01.  OPS CHECK GOOD. NO FURTHER DEFECTS NOTED.

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