# SDR CA990513012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 1999
- 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 PW121
- Propeller: Hamstd 14SF5
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: Gcu
- Part number: 10200311
- Condition: Failed
- Location: Dc System
- Part time: 21,523 hours
- Stage of operation: CL
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990513012

## Discrepancy

(CAN) DURING CLIMB,  NR 1 DC POWER WAS LOST.   NR 1 GCU REPLACED.

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