# SDR USAASA03122

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2003
- Submitted: November 12, 2003
- Operation: Air carrier
- Aircraft: [N764US](https://openairdocs.org/aircraft/N764US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1369
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Control Unit
- Part number: C20216332292C
- Condition: Failed
- Location: Brake System
- Part time: 8,316 hours
- Stage of operation: TX
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASA03122

## Discrepancy

ON TAXI OUT, CREW RECEIVED THE MASTER WARNING NR 2 BRAKES, AND LOST BOTH NOSE WHEEL STEERING AND BRAKES.  BOTH RETURNED APPROXIMATELY TEN SECONDS LATER, RESULTING IN A VIOLENT STOP AND THE INJURY OF THREE FLIGHT ATTENDANTS.  MAINTENANCE PERFORMED BITE OF THE BSCU, BRAKE STEERING CONTROL UNIT, AND FOUND THE NR 1 CHANNEL FAILED AND THE NR 2 CHANNEL NOT PICKING UP THE LOAD.  THE BSCU WAS REPLACED.  (M)

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