# SDR UIEA200900027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2009
- Submitted: April 24, 2009
- Operation: Air carrier
- Aircraft: [N496MC](https://openairdocs.org/aircraft/N496MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29257
- Aircraft time: 42,795 hours, 6,403 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Failed
- Location: E/E Bay
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200900027

## Discrepancy

ON "TAXI IN" THERE WAS AN ODOR OF ELECTRICAL BURNING IN THE COCKPIT.  ALSO, E/E COOLING FAN STATUS MESSAGE.  FOUND E/E FAN FAILED AND DEFERRED FAN PER MEL 21-58-4.  ALSO, PERFORMED CONDITIONAL INSPECTION PER AMM 05-51-56.  NO FURTHER TROUBLE FOUND.  NO PARTS CHANGED AT THIS TIME.

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