# SDR SWA041437

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2004
- Submitted: June 1, 2004
- Operation: Air carrier
- Aircraft: N326SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23690
- Aircraft time: 56,007 hours, 53,433 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 896768
- Condition: Faulty
- Location: Apu Bay
- Stage of operation: CL
- 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/SWA041437

## Discrepancy

AIR TURNBACK, DURING CLIMBOUT, APU FIRE INDICATION, C/W QRH AND RETURNED TO IND.  REMOVED AND REPLACED APU FWD FIRE LOOP PER MM.

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