# SDR AALA201912239004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2019
- Submitted: December 31, 2019
- Operation: Air carrier
- Aircraft: [N995AN](https://openairdocs.org/aircraft/N995AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7301
- Aircraft time: 9,947 hours, 3,813 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Monitoring Unit
- Part number: 351H51002
- Part serial: 21129
- Condition: Faulty
- Location: Berake System
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201912239004

## Discrepancy

AIRCRAFT WAS GROUNDED: APPROXIMATELY 80 KNOTS ON TAKEOFF ECAM BRAKES HOT MESSAGE REJECTED TAKEOFF TO  FULL STOP LEFT MAIN 1/2  425-550C  RT MAIN3/4 NORMAL RANGE TO 300 MAX. SUPPLEMENTAL REPORT: REPLACED (BTMU) BRAKE TEMP MONITORING UNIT AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-47-18. (CLOSED)

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