# SDR 2P9A3229

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2016
- Submitted: October 7, 2016
- Operation: Air carrier
- Aircraft: [N267MC](https://openairdocs.org/aircraft/N267MC), registered now
- Make and model: Cessna 206H
- Registry model: [Cessna 206H](https://openairdocs.org/model/cessna-206h) (OpenAirDocs)
- Aircraft serial: 20608267
- Aircraft time: 3,335 hours
- Engine: Lyc IO540AC1A5
- Engine time: 1,335 hours
- Propeller: Mcauly B3D36C432
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Spark Plug
- Part number: RHB37E
- Condition: Broken
- Location: Engine
- Part time: 181 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2P9A3229

## Discrepancy

DURING CRUISE FLIGHT,  THE PILOT EXPERIENCED A SUDDEN RISE IN EGT AND CHT FOR NR 4 CYLINDER AND THEN EXPERIENCED A ROUGH RUNNING ENGINE.  PILOT MADE A PRECAUTIONARY LANDING TO GET THE PLANE INSPECTED.  FOUND THE SPARK PLUG BROKEN.

---
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.