# SDR 96ZZZX1559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [RAM Aircraft, Limited Partnership, repair station VA1R551K](https://openairdocs.org/faa-repair-station/VA1R551K/ram-aircraft-limited-partnership.md) (OpenAirDocs)
- Aircraft: N12455
- Make and model: Cessna 414A
- Registry model: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (OpenAirDocs)
- Aircraft serial: 414A1207
- Engine: Cont TSIO520NB
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Part number: 115721
- Condition: Cracked
- Location: Lt Engine
- Part time: 2,080 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/96ZZZX1559

## Discrepancy

ENGINE CRANKCASE 1157-21 DEFECTIVE DUE TO CRACKS AFT OF NR 2 CYLINDER.  ALSO, NR 2 AND NR 3 BEARING SADDLES HAVE CRACKS.  CRANKCASE PN 643202 MODIFIED TO 1157-21 PER STC SE 3630SW.

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