# SDR P5CA2011082000457

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2011
- Submitted: August 23, 2011
- Operation: Air carrier
- Aircraft: [N452PA](https://openairdocs.org/aircraft/N452PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30810
- Aircraft time: 47,111 hours, 7,689 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: IN
- 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/P5CA2011082000457

## Discrepancy

PRIOR TO DEPARTURE, BURNING SMELL REPORTED BY FLT CREW. FOUND EQUIP EXHAUST FAN HOT AND SMELLING BURNT.  INSPECTED FAN WITH NO FINDINGS.  DEACTIVATED EXHAUST FAN AND DEFFERED ITEM WITH MEL 21-58-4.

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