# SDR AALA201803169017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2018
- Submitted: March 19, 2018
- Operation: Air carrier
- Aircraft: [N153AN](https://openairdocs.org/aircraft/N153AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6908
- Aircraft time: 7,418 hours, 2,818 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake
- Condition: Defective
- Location: Mlg
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201803169017

## Discrepancy

BRAKE RELEASED ON LANDING ROLL OUT. ACCOMPLISHED TSM 32-42-00 FOR LOSS OF THE SIGNAL FROM TACHOMETER 1 TO THE BSCU BY PERFORMING FUNCTIONAL TEST OF THE TACHOMETER IAW AMM 32-42-00. OPERATIONS CHECK GOOD.

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