# SDR CALA2013121693706

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2013
- Submitted: December 16, 2013
- Operation: Air carrier
- Aircraft: [N491UA](https://openairdocs.org/aircraft/N491UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1741
- Aircraft time: 38,326 hours, 16,732 cycles
- Engine: Iae V2527A5
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Tachometer
- Condition: Faulty
- Location: Brake System
- Stage of operation: IN
- 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/CALA2013121693706

## Discrepancy

AUTO BRAKE FAULT DISPLAYED ON UPPER ECAM SCREEN.  BRAKE FAULT ON ROLL OUT.  LT TRUCK BRAKE TEMPS DIFFER BY MORE THAN 300, 55 - 405 DEGREES.  R & R NR 1 MLG TACHOMETER 19GG IAW AMM 32-42-57-400-001-B.  PERFORMED FUNCTIONAL TEST IAW AMM 32-42-00-720-003-A, CHECKED GOOD.  AIRCRAFT REMAINS FULLY CAT FUNCTIONAL.

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