# SDR HNAA2018112600292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2018
- Submitted: November 26, 2018
- Operation: Air carrier
- Aircraft: [N639AE](https://openairdocs.org/aircraft/N639AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145182
- Aircraft time: 44,313 hours, 40,499 cycles
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Uplock Sensor
- Condition: Failed
- Location: Nlg Door
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2018112600292

## Discrepancy

PDIS  639     32-10  1689331  24NOV18  MDT  CLOSE
      NLG DOOR STUCK OPEN.
      DFRL  25NOV18  06:25  MDT
            REF:EMB FIM 32-32-00-810-802,DOWNLOADED CMC IN REF TO W/C 45-90-00-NO ASSOCIATED MESSAGES.
            MERLIN HISTORY INDICATED NLG DOOR SOLIENIOD VALVE WAS R&R'D.
FACT  25NOV18  06:29  MDT
            FOUND UPLOCK PROXIMITY SWITCH BAD.R&R'D UPLOCK PROX SWITCH IN REF TO AMM 32-63-03/GAP REF AMM
            32-63-05.SWUNG GEAR SEVERAL TIMES.LANDING GEAR OPS CHECKED GOOD IN REF TO AMM 32-30-00.
            OK FOR SERVICE @ THIS TIME.

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