# SDR CALA9601690

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N17557](https://openairdocs.org/aircraft/N17557), registered now
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47424
- System (JASC): [2433 · DC Rectifier/Converter](https://openairdocs.org/jasc/2433)
- Part: Tr Unit
- Part number: 6RW176YN3
- Condition: Failed
- Location: E/E Compt
- Stage of operation: TX
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9601690

## Discrepancy

WHEN CREW ENTERED AIRCRAFT AT GATE, WITH EXTERNAL POWER ON, THEY NOTICED SMOKE IN COCKPIT AND CABIN.  THE NR 2 TRANSFORMER RECTIFIER CIRCUIT BREAKER WAS POPPED AND WOULD NOT RESET.  EXAMINATION OF THE NR 2 TRANSFORMER RECTIFIER FOUND IT BURNT.  THE NR 2 TRANSFORMER RECTIFIER WAS REMOVED AND REPLACED, OPERATIONAL CHECKS WERE GOOD.

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