# SDR CA041001011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2004
- Submitted: January 5, 2005
- Operation: General aviation
- Make and model: Cessna A185F
- Registry model: [Cessna A185F](https://openairdocs.org/model/cessna-a185f) (OpenAirDocs)
- Aircraft time: 5,667 hours
- Engine: Cont IO520D
- Propeller: Mcauly D3A34C403
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Magneto
- Part number: 6310
- Part serial: 02050194
- Condition: Arced
- Location: Right
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA041001011

## Discrepancy

(CAN) PILOT REPORTED A 200 RPM DROP ON RT MAGNETO. TROUBLESHOOTING REVEALED THAT TOP IGNITION WIRE ON NR 5 CYLINDER WAS UNSERVICEABLE.  WHEN HARNESS WAS REMOVED FROM MAGNETO, EVIDENCE OF HEAVY ARCING WAS NOTED IN THE NR 5 LEAD OUTLET AREA OF THE DISTRIBUTOR BLOCK.

---
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.