# SDR ASOA20120205016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2012
- Submitted: February 13, 2012
- Operation: Air carrier
- Aircraft: N14905
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145476
- Aircraft time: 25,263 hours, 19,116 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Switch
- Part number: 852701
- Part serial: A15267
- Condition: Faulty
- Location: Nlg Uplock
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA20120205016

## Discrepancy

THE CREW REPORTED A LOUD THUMPING NOISE DURING GEAR RETRACTION.  MX INSPECTED AND REPLACED THE NR 3 NOSE GEAR UPLOCK BOX PROXIMITY SWITCH.  PERFORMED LANDING GEAR EXTENSION AND RETRACTION TESTS.  OPS CHECKED GOOD.

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