# SDR 2007FA0000213

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2006
- Submitted: March 2, 2007
- Operation: General aviation
- Aircraft: [N8391Y](https://openairdocs.org/aircraft/N8391Y), registered now
- Make and model: Piper PA-28-161
- Registry model: [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161) (OpenAirDocs)
- Aircraft serial: 288116235
- Engine: Lyc O320D3G
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Part number: LW18372
- Condition: Cracked
- Location: Engine
- Part time: 4,648 hours
- Component: Engine, Lyc, O320D3G
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007FA0000213

## Discrepancy

DURING 100 HOUR INSPECTION A CRACK WAS DISCOVERED ON RT CRANKCASE HALF.  THE CRACK (APPROXIMATELY 1 INCH) ORIGINATED FROM A LOWER PARTING FACE BOLT HOLE AND SHOWED EVIDENCE OF OIL LEAKAGE ONTO MUFFLER SHROUD (BURNED OIL).  SPECIFIC CAUSE OF CRACK UNKNOWN.

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