# SDR DALA2026071304121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2026
- Submitted: July 14, 2026
- Operation: Air carrier
- Aircraft: [N109DU](https://openairdocs.org/aircraft/N109DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50028
- Aircraft time: 19,317 hours, 8,969 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Control Unit
- Condition: Faulted
- Location: Zone 700
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026071304121

## Discrepancy

DECLARED EMERGENCY DUE TO BRAKE ON CAUTION MESSAGE.  REPLACED LEFT OUTBOARD BRAKE, RIGHT INBOARD BRAKE, AND ELECTRIC MOTOR CONTROL UNIT (EMCU) NR 1. (LP# 8595678; AIRCRAFT WAS GROUNDED)

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