# SDR DXTA2019021802035

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2019
- Submitted: February 28, 2019
- Operation: Air carrier
- Aircraft: [N366QS](https://openairdocs.org/aircraft/N366QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500268
- Aircraft time: 3,526 hours, 2,742 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Condition: Contaminated
- Location: Mlg
- Stage of operation: AP
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2019021802035

## Discrepancy

LOUD BANG WHEN SELECTED DOWN AND 8-10 SECONDS FOR GREEN INDICATION.   BLED THE AIR FROM THE LANDING GEAR UPLOCK BOXES.  CHECKED & ADJUSTED HYDRAULIC ACCUMULATOR NITROGEN CHARGE REDUCING PRECHARGE PRESSURE.  PERFORMED FUNCTIONAL CHECK ON THE LANDING GEAR EXTENSION & RETRACTION - OPS CHK GOOD. SERVICED HYDRAULIC RESERVOIR.  NO FURTHER LOUD BANGING NOISES.  WORK DONE IAW PHENOM 300 M/M 32-31-05-870-801, 32-31-00-720-801, 12-13-00-610-801, 29-10-00-860-801.

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