# SDR SWAA115759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2011
- Submitted: August 12, 2011
- Operation: Air carrier
- Aircraft: [N398SW](https://openairdocs.org/aircraft/N398SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27692
- Aircraft time: 54,158 hours, 44,610 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Panel
- Part number: 44051601938
- Part serial: 97012599
- Condition: Faulty
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA115759

## Discrepancy

DECLARED EMERGENCY  -  AT ROTATION, SERIES OF FAILURES, AUDIO FOR AUTO PILOT, A/P LIGHTS, YAW DAMPER ILLUMINATED, MACH TRIM FAIL, AND SMOKE REPORTED BY FLIGHT ATTENDANTS.  REMOVED AND REPLACED FSAU, FCC'B, LRRA-1, AND MCP IAW MM.

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