# SDR ZW0A0208001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2002
- Submitted: July 31, 2002
- Operation: Air carrier
- Aircraft: N931TW
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 49527
- Aircraft time: 46,132 hours, 23,400 cycles
- System (JASC): [2410 · Alternator-Generator Drive](https://openairdocs.org/jasc/2410)
- Part: O-Ring
- Part number: 325753
- Condition: Deteriorated
- Location: Rt Csd
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ZW0A0208001

## Discrepancy

DURING CRUISE OIL QTY IN RT ENGINE DROPPED FROM 9 QTS TO 5 QTS, OIL PRESSURE REMAINED NORMAL.  REDUCED POWER AND MADE UNSKD LANDING.  CSD TRA553 WET SPLINE CAVITY O-RING LEAKING DUE TO DETERIORATION.  REPLACED CSD AND PACKING PER MM D9-24-03.

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