# SDR HNAA2017051900176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2017
- Submitted: May 19, 2017
- Operation: Air carrier
- Aircraft: [N943](https://openairdocs.org/aircraft/N943), registered now
- Make and model: Dhav DHC8102
- Aircraft serial: 167
- Aircraft time: 67,975 hours, 76,797 cycles
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Steering Unit
- Condition: Inoperative
- Location: Nlg
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2017051900176

## Discrepancy

NOSEWHEEL STEERING WILL NOT COME ON, DURING TROUBLESHOOTING,  FOUND THE GEAR DOORS WOULD NOT CLOSE WITH ENGINES RUNNING. CONFIRMED O/H BYPASS DOOR IS CLOSED. SLAVED IN LANDING GEAR CONTROL PANEL NO FIX, REINSTALLED ORIGINAL. WAS UNABLE TO  HEAR LANDING GEAR SELECTOR VALVES CLICKING. INSPECTED BYPASS VALVE, NO OBVIOUS DEFECTS NOTED.

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