# SDR HYIA20230912004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2023
- Submitted: September 12, 2023
- Operation: Air carrier
- Aircraft: [N411CA](https://openairdocs.org/aircraft/N411CA), registered now
- Make and model: Tecnam P2012
- Aircraft serial: 008
- Aircraft time: 1,375 hours, 1,466 cycles
- Engine: TEO540C1A
- Engine time: 1,778 hours, 1,761 cycles
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 16A26347
- Part serial: 16419T13A
- Condition: Failed
- Location: Unknown
- Part time: 688 hours, 624 cycles
- Component: Engine, Lyc
- Component part number: TEO540C1A
- Stage of operation: CR
- How discovered: V
- Nature of condition: Z
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20230912004

## Discrepancy

PILOT REPORTED LEFT OIL PRESSURE DROPPED IN FLIGHT WITH BLACK SMOKE. MAINTENANCE INSPECTED AND FOUND EXCESSIVE OIL IN THE LEFT ENGINE #4 CYLINDER. REPLACED CYLINDER WITH NO FURTHER DEFECTS NOTED.

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