# SDR SWAA042584

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2004
- Submitted: September 15, 2004
- Operation: Air carrier
- Aircraft: [N369SW](https://openairdocs.org/aircraft/N369SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26580
- Aircraft time: 38,523 hours, 34,290 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 472622
- Part serial: 2034
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA042584

## Discrepancy

AIR TURN BACK, 1 TO 2 MINUTES AFTER DEPARTURE THE NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED, THEN NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED.  ALL LIGHTS EXTINGUISHED WHEN THROTTLES RETARDED FOR DESCENT.  REMOVED AND REPLACED NR 1 ENGINE CONTROL PANEL AND NR 1 FIRE DETECTOR UNIT PER MM.

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