# SDR DALA2026090104933

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N101DU](https://openairdocs.org/aircraft/N101DU), 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: 50020
- Aircraft time: 17,407 hours, 8,293 cycles
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Control Unit
- Part number: C07500018009
- Part serial: AAK8000266
- Condition: Faulty
- Location: Nr 1
- Part time: 17,392 hours, 8,285 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026090104933

## Discrepancy

DECLARED EMERGENCY DUE TO 24 ELECTRICAL FAULT - BPCU INOP WITH ASSOCIATED FLAP AND SLAT REDUNDANT LOSS AT CRUISE.  REPLACED NR 1 BUS POWER CONTROL UNIT (BPCU). (LP# 8621390)

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