# SDR SIMA20160411003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2016
- Submitted: April 12, 2016
- Operation: Air carrier
- Aircraft: [N609DP](https://openairdocs.org/aircraft/N609DP), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145069
- Aircraft time: 43,059 hours, 35,725 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Switch
- Part number: 8005701
- Part serial: 5557
- Condition: Failed
- Location: Rt Mlg
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20160411003

## Discrepancy

DEPARTED & UPON GEAR RETRACTION A LOUD CONTINUOUS THUMPING NOISE COULD BE HEARD A LOUD WITH RT MAIN GEAR INDICATION ON EICAS CYCLING, BETWEEN UP & IN TRANSIT EXTENDED GEAR WHICH EXTENDED NORMALLY & LT DOWN. WHEN GEAR HANDLE WAS UP THE LT MAIN & NOSE SHOWED UP JUST THE RT MAIN WAS CYCLING.  R & R RT UP LOCK BOX PROX SWITCHES IAW AMM 32-61-01.  COMPLIED WITH EXTENSION & RETRACTION SEVERAL TIMES FOUND SYS OK IAW AMM 32-30-00.  PROXIMITY SENSOR PN 80-057-01 & SN 6055 SPL 4.

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