# SDR P5CA0401028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2004
- Submitted: January 15, 2004
- Operation: Air carrier
- Aircraft: [N452PA](https://openairdocs.org/aircraft/N452PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30810
- Aircraft time: 12,588 hours, 2,235 cycles
- Engine: Ge CF680C2*
- Engine time: 11,488 hours, 2,009 cycles
- System (JASC): [7932 · Engine Oil Quantity](https://openairdocs.org/jasc/7932)
- Part: O-Ring
- Part number: J221P124
- Condition: Displaced
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: V
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0401028

## Discrepancy

NR 1 ENG HAD LOSS OF OIL QUANTITY.  ENG SHUT DOWN & RETURN TO MIA.  FOUND GEARBOX CRANKPAD COVER O-RING CUT, 50 PERCENT OF RING DISPLACED.  REPLACED SAME, RESERVICED ENG OP'S & LEAK CHECK OK.

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