# SDR N3XR2019040500002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2019
- Submitted: April 5, 2019
- Operation: General aviation
- Filed by: [Embry-Riddle Aeronautical University Inc, repair station N3XR816N](https://openairdocs.org/faa-repair-station/N3XR816N/embry-riddle-aeronautical-university-inc.md) (OpenAirDocs)
- Aircraft: [N475ER](https://openairdocs.org/aircraft/N475ER), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S12248
- Aircraft time: 86 hours
- Engine: Lyc IO360L2A
- Engine time: 86 hours
- System (JASC): [8510 · Reciprocating Engine Front Section](https://openairdocs.org/jasc/8510)
- Part: Plug
- Part number: STD1211
- Condition: Leaking
- Location: Engine
- Stage of operation: CL
- 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/N3XR2019040500002

## Discrepancy

DURING A 100 HR INSPECTION, OIL WAS FOUND LEAKING FROM THE CRANKSHAFT EXPANSION PLUG P/N-STD-1211. THE PLUG WAS REPLACED.

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