# SDR DALA2021081004569

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2021
- Submitted: August 10, 2021
- Operation: Air carrier
- Aircraft: N331NW
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 318
- Aircraft time: 85,076 hours, 39,056 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Control Unit
- Condition: Faulted
- Location: Main Braking
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021081004569

## Discrepancy

SHIP 3231 ONCE ON THE RUNWAY FOR TAKEOFF, ECAM BRAKES SYS 1 FAULT APPEARED RAN QRH 14.7 WHICH DIRECTED A BSCU RESET PER COMPUTER RESET ADDENDUM,. RESET SEEMED SUCCESSFUL HOWEVER 10-15 MINUTES LATER WHEN BACK ON THE RUNWAY FOR SECOND ATTEMPT BRAKES SYS 1 FAULT ECAM MESSAGE RETURNED. CORRECTIVE ACTION: REPLACED BSCU PER A320 AMM 32-42 ALL BITE PASSES & NO FURTHER FAULTS NOTED (7767040)

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