# SDR BAGA2026091600003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2026
- Submitted: September 16, 2026
- Operation: Air carrier
- Aircraft: [N225BZ](https://openairdocs.org/aircraft/N225BZ), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55225
- Aircraft time: 8,090 hours, 4,562 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Bpcu
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- 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/BAGA2026091600003

## Discrepancy

24 ELECTRICAL FAULT BPCU INOP, 24 ELEC FAULT CDC 1 MICRO MODULE 1 INOP, 27 SLAT FAULT DATA CONFIG INPUT REDUND LOSS, 27 FLAP FAULT REDUND LOSS AFTER TAKE OFF THEN PARTIAL ELECTRICAL LOSS AND AC BUSS 1 OUT.  INITIALLY REPLACED BPCU 1 AND FAULT DID NOT CLEAR. TRIED TO SWAP #2 WITH NEW AND FAULT DID NOT CLEAR. SWAPPED THE NR 1 & 2 BATTERY AND FAULT DID NOT CLEAR, THEN TRIED TO SWAP CDC LRM 01 MICRO/COMM CARDS AND RERACKED AND FAULT DID NOT CLEAR. AFTER ALL PARTS WERE SWAPPED THE GCU INSIDE OF THE MID EQUIPMENT BAY TO BE COMPLETELY LOOSE INSIDE OF TRAY AND NOT ENGAGED INTO ELECTRICAL WIRING PLUGS. REINSTALLED GCU AND SWAPPED ALL PARTS TO ORIGINAL CONFIGURATION AND ALL OPS CHK PASSED WITH NO DEFECTS FOUND.

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