# SDR SIMA201807030002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2018
- Submitted: July 3, 2018
- Operation: Air carrier
- Aircraft: [N664MS](https://openairdocs.org/aircraft/N664MS), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145779
- Aircraft time: 35,590 hours, 31,111 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Electronic Unit
- Part number: 355022003
- Part serial: 4054
- Condition: Failed
- Location: Landing Gear
- 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/SIMA201807030002

## Discrepancy

LG AIR/GND FAIL AFTER DEPARTURE IN CLIMB APPROX 4000' MSL GEAR SHOWED UP + LOCKED INDICATED NEGATIVE STICK SHAKER ON APPROACH/ ENROUTE. TROUBLESHOOTING PER FIM 32-63-00-810-804-A REVEALED POSSIBLE BAD LGEU REFERENCE TURNOVER ITEM 2 THIS NRWC. REMOVED AND REPLACED LANDING GEAR ELECTRONIC UNIT IAW AMM 32-32-01. OPS CHECK GOOD PER FUNTIONAL CHECK OF AIR/GROUND (WOW) SYSTEM SIMULATION AMM TASK 32-63-00-700-801-A. NO FURTHUR DEFECTS NOTED AT THIS TIME.

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