# SDR UPS403193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N671UP](https://openairdocs.org/aircraft/N671UP), registered now
- Make and model: Boeing 747123F
- Aircraft serial: 20327
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loops
- Condition: Malfunctioned
- Location: Nr 2 Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: E, F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS403193

## Discrepancy

WHILE EN ROUTE TO SNN, FLIGHT CREW  REPORTED AT ALTITUDE NR 2 ENGINE FIRE WARNING LIGHT ILLUMINATED.  INDICATIONS WERE B-LOOP SHOWING 8.7 ON THE COMPARTMENT INDICATOR.  ACCOMLISHED ENGINE FIRE BOLD FACE AND CHECKLIST ITEMS IN ACCORDANCE WITH SECTION II OF THE AOM.  CHANGED FOUR DUAL FIRE DETECTOR WIRES P/N 895396, 89439, 895397, 895899.  CHANGED BOTH FIRE BOTTLES S/N M2200 AND M1162, FIRE TEST OK ON LOOPS A AND B.

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