# SDR C2XA10CL203

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2010
- Submitted: December 21, 2010
- Operation: Air carrier
- Aircraft: N13908
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145465
- Aircraft time: 18,516 hours, 14,764 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Part number: 23092900001
- Part serial: 386
- Condition: Defective
- Location: Lt Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA10CL203

## Discrepancy

DSM FLT 5906 THE CREW REPORTED A THUMPING NOISE IN THE NOSE GEAR AFTER RETRACTION.  MAINTENANCE INSPECTED AND REPLACED THE LEFT MAIN GEAR UPLOCK BOX AND PROXIMITY SWITCHES.  OPERATIONAL CHECKS WERE GOOD.

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