# SDR UIEA200600172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2006
- Submitted: July 14, 2006
- Operation: Air carrier
- Aircraft: [N498MC](https://openairdocs.org/aircraft/N498MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29259
- Aircraft time: 31,101 hours, 4,645 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Condition: Disintegrated
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: A, B, J
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200600172

## Discrepancy

NR 1 APU GENERATOR BEARING MSG DURING T/S CHECK, BURNING SMELL INSIDE CABIN SUSPECT APU FIRE.  FLT CREW FOLLOW QRH AND FIRE HANDLE PULLED AND FIRE BOTTLE DISCHARGED.  APU COMPARTMENT CHECKED AND FOUND HEATING DAMAGE.  NR 1 GEN DISINTEGRATED CAUSING DEBRIS IMPACT DAMAGE.

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