# SDR 99ZZZX583

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N637DT
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C0508
- Engine: Cont GTSIO520N
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rod
- Condition: Failed
- Location: Cylinder
- Part time: 4,060 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX583

## Discrepancy

ENGINE STARTED EXTREME VIBRATION CLIMBING THROUGH 13,000 FEET.  OIL LEAK OBSERVED COMING FROM LOUVERS.  ENGINE WAS SHUT DOWN AND PROPELLER FEATHERED.  INSPECTION REVEALED 2 HOLES IN CASE HALVES ABOVE NR 1 AND NR 2 CYLINDERS.  NR 1 CYLINDER ROD BROKEN.  SEVERAL INTERNAL PIECES LAYING IN BAFFELING.  RT MAGNETO DESTROYED DUE TO FOREIGN OBJECT IMPACT.

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