# SDR 95ZZZW632

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N53116](https://openairdocs.org/aircraft/N53116), registered now
- Make and model: Boeing 747131
- Aircraft serial: 20321
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 60B00023163
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CR
- Nature of condition: N
- Precautionary procedure: E, F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZW632

## Discrepancy

JFK - DURING CRUISE, NR 1 NACELLE FIRE DETECTOR FAULT LIGHT ILLUMINATED WITH TEMPERATURES IN THE FAULT RANGE.  THE NR 1 ENGINE FIREWARNING SOUNDED.  SHUT DOWN NR 1 ENGINE AND DISCHARGED BOTH EXTINGUISHER BOTTLES.  FOUND BOTH DETECTORS SHORTED.  REPLACED BOTH DETECTORS, MFG P/N 60B00023-163 AND P/N 60B00023-166.  PERFORMED POWER RUNUP AND NACELLED DETECTOR FAULT AND FIREWARNING SYSTEMS CHECKED NORMAL.

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