# SDR SWAA085822

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2008
- Submitted: October 29, 2008
- Operation: Air carrier
- Aircraft: [N912WN](https://openairdocs.org/aircraft/N912WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36621
- Aircraft time: 2,469 hours, 1,520 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007021
- Part serial: 7793
- Condition: Leaking
- Stage of operation: TO
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA085822

## Discrepancy

AIR TURNBACK / DECLARED EMERGENCY.  APPROX 4 MINS.  AFTER TAKEOFF BOTH LAV SMOKE ALARMS SOUNDED.  FLT ATTENDANTS REPORTED A SLIGHT ODOR & HAZE IN CABIN.  FAINT ODOR IN COCKPIT.  RETURNED TO DAL.  REMOVED AND REPLACED APU PER MM AND MT.

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