# SDR SWAA101908

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2010
- Submitted: April 8, 2010
- Operation: Air carrier
- Aircraft: N332SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23696
- Aircraft time: 71,590 hours, 64,401 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Panel
- Part number: 6937307153
- Part serial: D02450
- Condition: Faulty
- Location: Fire Warning
- Stage of operation: UK
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA101908

## Discrepancy

AIR TURNBACK / DECLARED EMERGENCY.  APU FIRE INDICATION APPROX 5 MIN APU SHUTDOWN AND DEPARTURE ALARM CONTINUED INTERMITTENTLY UNTIL LANDING.  APU DET INOP, ILLUMINATED AT GATE.  REMOVED AND REPLACED P8-1 ENG & APU FIRE CONTROL PNL.

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