# SDR HALA2017052600180

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2017
- Submitted: May 31, 2017
- Operation: Air carrier
- Aircraft: [N388HA](https://openairdocs.org/aircraft/N388HA), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1310
- Aircraft time: 23,355 hours, 3,576 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Tachometer
- Condition: Failed
- Location: Nr 4 Wheel Speed
- 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/HALA2017052600180

## Discrepancy

ABORTED TAKE OFF AT 70 KNOTS DUE TO ECAM BRAKES RELEASED BRAKE 4 RELEASED.  REPLACED THE NR 4 WHEEL SPEED TACHOMETER AND SHAFT ASSEMBLY.

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