# SDR 2007UALA00578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2007
- Submitted: March 6, 2007
- Operation: Air carrier
- Aircraft: [N786UA](https://openairdocs.org/aircraft/N786UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26938
- Aircraft time: 43,519 hours, 6,622 cycles
- Engine: Pwa PW4090
- Engine time: 39,003 hours, 5,860 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: Unknown
- Condition: Smoke
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA00578

## Discrepancy

SMOKE COMING FROM FWD OUTFLOW VALVE AFTER ENGINE START.

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