# SDR SIMA20140311001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2014
- Submitted: March 12, 2014
- Operation: Air carrier
- Aircraft: [N620AE](https://openairdocs.org/aircraft/N620AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145102
- Aircraft time: 35,914 hours, 32,175 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Electronic Unit
- Part number: 355022003
- Part serial: 1508
- Condition: Failed
- Location: Landing Gear
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20140311001

## Discrepancy

AFTER TAKEOFF SELECTED GEAR UP EICAS INSTANTLY WENT FROM DOWN TO UP WITH NO TRANSITION INDICATION.  CHECKED RMU, RMU INDICATED DOWN & LOCKED, EICAS INDICATED UP. GEAR POSITION IN QUESTION RAN ABNORMAL LG EXTENSION CHECKLIST, GEAR CAME DOWN WITH GEAR ELEC OVERRIDE SWITCH IN GEARS & DOORS POSITION.  DECLARED EMERGENCY, LANDED SAFELY MIA.  R & R LGEU IAW AMM 32-32-01 & PERFORMED OPERATIONS CHECK IAW AMM 32-30-00.

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