# SDR SWAA031328

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2003
- Submitted: June 17, 2003
- Operation: Air carrier
- Aircraft: N526SW
- Make and model: Boeing 737-5H4
- Registry model: [Boeing 737-5H4](https://openairdocs.org/model/boeing-737-5h4) (OpenAirDocs)
- Aircraft serial: 26568
- Aircraft time: 36,303 hours, 35,727 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 33007505
- Part serial: 23836
- Condition: Faulty
- Location: Apu
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: F, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA031328

## Discrepancy

DIVERSION, APU FIRE WARNING LIGHT ILLUMINATED.  DISCHARGED BOTH FIRE BOTTLES, FIRE LIGHT WENT OUT AND THEN RE-ILLUMINATED.  REMOVED AND REPLACED APU LOWER FIRE DETECTOR LOOP AND BOTH FIRE BOTTLES PER MM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.