# SDR N3XR202406120001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2024
- Submitted: June 12, 2024
- 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: [N316ER](https://openairdocs.org/aircraft/N316ER), 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: 42N224
- Aircraft time: 2,024 hours
- Engine: Austro E4
- Engine time: 272 hours
- Propeller: Mtprop MTV6*
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Piston
- Part number: UNKNOWN
- Condition: Cracked
- Location: Lt Engine
- Part time: 272 hours
- Stage of operation: CR
- How discovered: V
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N3XR202406120001

## Discrepancy

LEFT ENGINE POWER HAD 3% & RPM(100RPM) FLUCTUATION. VISIBLE ENGINE OIL LEAKING OUT OF AIR OUTLETS. DIVERTED TO XXXX ON THE GROUND, POWER 10%FLUCTUATION RPM. INVESTIGATION REVEALED THAT THE #3 PISTON WAS CRACKED AND A HOLE HAD DEVELOPED AT THE 3 O'CLOCK POSITION. THE ENGINE WAS REMOVED AND A NEW ENGINE WAS INSTALLED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.