# SDR SWAA991634

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: 061SW
- Make and model: Boeing 737-2H4
- Registry model: [Boeing 737-2H4](https://openairdocs.org/model/boeing-737-2h4) (OpenAirDocs)
- Aircraft serial: 21970
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 894091
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: E, F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA991634

## Discrepancy

AIR TURNBACK, IN FLIGHT ENGINE SHUT DOWN.  DURING CLIMB, NR 1 ENG INDICATED FIRE WARNING.  BOTH FIRE BOTTLES WERE DISCHARGED.  REMOVED AND REPLACED FAULTY UPPER FIRE LOOP DETECTOR AT PYLON PER MM.

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