# SDR SIMA20141208002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2014
- Submitted: December 10, 2014
- Operation: Air carrier
- Aircraft: [N618AE](https://openairdocs.org/aircraft/N618AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145097
- Aircraft time: 37,341 hours, 34,060 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Part number: 23092900001
- Part serial: 339
- Condition: Failed
- Location: Rt Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20141208002

## Discrepancy

AFTER TAKEOFF WITH GEAR UP, FELT A THUMPING UNDER THE ACFT.  DECLARED AN EMERGENCY & RETURNED TO DEPARTURE.  THE THUMPING CONTINUED UNTIL GEAR WAS DOWN.   REPLACED RT MLG UPLOCK BOX IAW MM 32-33-10.  OPS & LEAK CHECKED GOOD.

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