# SDR N3XR20250926001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2025
- Submitted: September 26, 2025
- 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: [N329ER](https://openairdocs.org/aircraft/N329ER), registered now
- Make and model: Diamon DA 42
- Registry model: [Diamon DA 42](https://openairdocs.org/model/diamond-aircraft-ind-da-42) (OpenAirDocs)
- Aircraft serial: 42N537
- Aircraft time: 936 hours
- Engine: Austro E4
- Engine time: 1,283 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston
- Part number: E4A72400000
- Condition: Cracked
- Location: Lt Engine
- Part time: 894 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N3XR20250926001

## Discrepancy

DURING TAKE OFF THE LEFT ENGINE FAILED AND WAS SHUT DOWN AND FEATHERED. OIL WAS SEEN STREAMING FROM THE COWLING. A BORE SCOPE INSPECTION REVEALED THE #1 PISTON FAILED.

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