# SDR 2023FA0000767

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2023
- Submitted: November 21, 2023
- Operation: General aviation
- Aircraft: [N854L](https://openairdocs.org/aircraft/N854L), registered now
- Make and model: Diamon DA 40 NG
- Registry model: [Diamon DA 40 NG](https://openairdocs.org/model/diamond-aircraft-ind-da-40-ng) (OpenAirDocs)
- Aircraft serial: 40NC056
- Aircraft time: 3,151 hours
- Engine: Austro E4
- Engine time: 545 hours
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Piston
- Part number: E4A72400000
- Part serial: 000317
- Condition: Failed
- Location: Zone 400
- Part time: 545 hours
- Component: Engine, Austro, E4
- Component part number: E4A00000BHY
- Stage of operation: CR
- How discovered: B
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023FA0000767

## Discrepancy

PILOT REPORTED PARTIAL ENGINE POWER LOSS AND OIL LOSS. INSPECTED ENGINE AND FOUND THE #4 PISTON CRACKED/HOLE

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