# SDR UALA2011100305351

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2011
- Submitted: October 20, 2011
- Operation: Air carrier
- Aircraft: [N426UA](https://openairdocs.org/aircraft/N426UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 510
- Aircraft time: 57,699 hours, 21,670 cycles
- Engine: Iae V2527A5
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Control Unit
- Part number: C202163392E35
- Part serial: 51
- Condition: Faulted
- Location: Nlg Steering
- Stage of operation: CR
- 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/UALA2011100305351

## Discrepancy

NLG STEERING FAULT, FLT DIVERTED.  PER FLT MANUAL, RESET NLG STEERING SWITCH - NO HELP.  NO CIRCUIT BREAKERS CYCLED.  CFDS SHOWS "NO BSCU 1 DATA".  REPLACED BSCU.  SYSTEM TESTED GOOD.  CAT III TEST CHECKED GOOD.  TAXIED AIRCRAFT MAKING NUMEROUS STOPS AND TURNS USING BOTH TILLERS.  NO RETURNING FAULTS.

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