# SDR CA990125016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Engine: Pwa PW120
- Propeller: Hamstd 14SF5
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Bpcu
- Part number: 1050032
- Condition: Failed
- Location: Nr 2
- Part time: 13,957 hours
- Stage of operation: CR
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990125016

## Discrepancy

(CAN) DURING CRUISE, THE NR 2 DC BUS WAS LOST.  BPCU REPLACED.  THE POWER SUPPLY P/N Z100PCA WAS FOUND DEFECTIVE IN THE BPCU.

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