# SDR P5CA0601503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 2006
- Submitted: November 8, 2006
- Operation: Air carrier
- Aircraft: [N451PA](https://openairdocs.org/aircraft/N451PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30809
- Aircraft time: 24,923 hours, 4,276 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Smoke
- Location: Cabin
- Stage of operation: TX
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0601503

## Discrepancy

ON TAXI OUT, SMOKE WAS NOTICED ON UPPER DECK.  CREW REST SMOKE DETECTOR ACTIVATED AND UPPER DECK AIR SUPPLY BUTTON ILLUMINATED.  COCKPIT AND LOWER DECK WERE CLEAR OF SMOKE.  AFTER A FEW MINUTES, SMOKE/ODORS DISAPPEARED AND AIR SUPPLY RESET.  NO FURTHER PROBLEMS.  INSPECTED EVIDENCE OF OIL LEAK IN APU.  NO TROUBLE FOUND.  NO EVIDENCE FOUND WITH ALL 3 PACKS RUN, AND NO EVIDENCE SMELL OF SMOKE PER AMM 49-12-00.

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