# SDR SIMA20150321001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2015
- Submitted: March 23, 2015
- 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: 40,701 hours, 33,571 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Part number: 23092900001
- Part serial: 315
- Condition: Defective
- Location: Lt Mlg
- Stage of operation: TO
- 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/SIMA20150321001

## Discrepancy

UPON RAISING GEAR AFTER TAKEOFF UNUSUAL NOISE, THUNK, THUNK, THUNK ETC & LT GEAR INDICATOR CYCLED BETWEEN UP & IN TRANSIT.  TRANSFERRED TO NRWC 609-DFW-02208.  R & R LT MLG UPLOCK BOX IAW AMM 32-33-10.  OPERATIONS CHECKED GOOD.  PROXIMITY SENSOR PN 8-527-01, SN A6403.

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