# SDR AMCR2015012901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2015
- Submitted: January 29, 2015
- Operation: General aviation
- Aircraft: [N254DV](https://openairdocs.org/aircraft/N254DV), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20262
- Aircraft time: 1,979 hours, 1,294 cycles
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Steering Unit
- Part number: 40750103
- Part serial: LHC0355
- Condition: Intermittent
- Part time: 1,979 hours, 1,294 cycles
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMCR2015012901

## Discrepancy

AN UPGRADED STEERING MANIFOLD WAS INSTALLED IAW AIRCRAFT MODIFICATION.  SOON AFTER, A "NOSE WHEEL STEERING FAIL" AMBER CAS MESSAGE APPEARED UPON LANDING. CREW USED DIFFERENTIAL BRAKING TO TAXI OFF OF THE RUNWAY. DISCOVERED THAT WHEN THE STEERING MANIFOLD GETS COLD SOAKED AT ALTITUDE, THE UNIT WILL FAIL. UPON WARMING UP, THE UNIT WILL WORK JUST FINE.  STEERING MANIFOLD REPLACEMENT FIXED PROBLEM.

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