# SDR UALA2012091305176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2012
- Submitted: September 14, 2012
- Operation: Air carrier
- Aircraft: [N845UA](https://openairdocs.org/aircraft/N845UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1585
- Aircraft time: 37,150 hours, 15,314 cycles
- Engine: Iae V2522A5
- System (JASC): [3242 · Brake](https://openairdocs.org/jasc/3242)
- Part: Brake
- Part number: 21684
- Part serial: 424150261350
- Condition: Faulty
- Location: Alt System
- Stage of operation: TX
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012091305176

## Discrepancy

BRAKES GRAB & CHATTER AND GROAN WHEN COMING TO A STOP.  ALSO LEFT BRAKE PEDAL FEELS MUSHY UPON APPLICATION.   WORK WITH TSM 32-42-00-810-912A.  POSSIBLE LOW PRESSURE BRAKE ALTERNATE BRAKE SERVICE+BLEED NEEDED.  BLED LOW PRESSURE CTRL SYSTEM OF ALTERNATE BRAKING AND REPLACED BRAKES NR 2, 3 AND 4.  TAXIED AIRCRAFT, BRAKES OPERATED NORMAL.

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