# SDR IPXA2017042316400

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2017
- Submitted: April 24, 2017
- Operation: Air carrier
- Aircraft: [N257UP](https://openairdocs.org/aircraft/N257UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48451
- Aircraft time: 71,490 hours, 14,284 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 2240152505
- Part serial: UP50282
- Condition: Broken
- Location: Nr 3
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2017042316400

## Discrepancy

FIRE DETECTOR 3 FAULT, LEVEL ONE MESSAGE DURING DESCENT.  TROUBLESHOOTING PERFORMED IAW FIM 26-11-00-810-812, REV 86.  FOUND LOWER FIRE DETECTOR TURBINE BROKEN.  LOWER FIRE DETECTOR TURBINE CHANGED IAW AMM 26-11-03 REV 88.

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