# SDR P5CA0501305

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2005
- Submitted: January 21, 2005
- Operation: Air carrier
- Aircraft: N920FT
- Make and model: Boeing 747249F
- Aircraft serial: 22237
- Aircraft time: 77,783 hours, 18,899 cycles
- Engine: Pwa JT9D7Q
- Engine time: 59,535 hours, 14,496 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Line
- Condition: Chafed
- Location: Nr 3 Eng Oil
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0501305

## Discrepancy

NR 3 ENG OIL PRESS FLUCTUATES FROM 35 TO 45 PSI.  ENG OIL PRESS LIGHT BLINKS ON & OFF.  ALSO OIL QTY WENT FROM 3/4 TO 1/4 AND BACK TO 1/2.  FOUND UPPER ENGINE OIL LINE AT OIL FILTER HOUSING CHAFED.  REPLACED CHAFED LINE, COI ISSUED/ AMM 20-11-18.

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