# SDR USAASB04046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2004
- Submitted: May 18, 2004
- Operation: Air carrier
- Aircraft: [N448US](https://openairdocs.org/aircraft/N448US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24892
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Part number: 915F2125
- Condition: Overheated
- Location: Nr 1 Generator
- Part time: 55,212 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASB04046

## Discrepancy

NR 1 GENERATOR CONTROL UNIT BEGAN TO SMOKE IN FLIGHT. AFTER TRIPPING OFF LINE, SMOKE STOPPED.  FLT LANDED WITHOUT FURTHER INCIDENT AT CLT.  MAINTENANCE REMOVED AND REPLACED THE NR 1 GENERATOR CONTROL UNIT.  RAN ENGINE.  OPS CHECK NORMAL.  (M)

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