# SDR CA140317010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2014
- Submitted: March 12, 2015
- Operation: General aviation
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft time: 4,364 hours
- Engine: Lyc IO360L2A
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Magneto
- Part number: 4371
- Condition: Failed
- Location: Left
- Part time: 248 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA140317010

## Discrepancy

(CAN) WHILE TESTING THE LT MAGNETO DURING PRE-FLIGHT GROUND RUN,  IT WAS NOTED THAT THE ENGINE RAN EXTREMELY ROUGH. THE LT MAGNETO WAS REMOVED AND LOOSE PARTS WERE FOUND INSIDE. MAGNETO REPLACED.

---
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.