# SDR P5CA0100587

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2001
- Submitted: July 18, 2001
- Operation: Air carrier
- Aircraft: [N859FT](https://openairdocs.org/aircraft/N859FT), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20326
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Warning Light
- Condition: Illuminated
- Location: Nr 1 Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0100587

## Discrepancy

NR 1 OIL PRESSURE FLUCTUATING BETWEEN 40 AND 42 PSI, OIL QTY NORMAL, NO LIGHTS.  ON POWER REDUCTION AT TOP OF DESCENT NR 1 OIL PRESSURE LIGHT AND FILTER BYPASS LIGHT CAME ON.  ENG SHUTDOWN AS PRECAUTIONARY.  OIL TEMP AND QTY STILL NORMAL.

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