# SDR OG5R2016FA0000046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2016
- Submitted: February 2, 2016
- Operation: General aviation
- Aircraft: [N521ND](https://openairdocs.org/aircraft/N521ND), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S10975
- Aircraft time: 5,342 hours
- Engine: Lyc IO360L2A
- Engine time: 2,213 hours
- System (JASC): [7820 · Engine Noise Suppressor](https://openairdocs.org/jasc/7820)
- Part: Muffler
- Part number: A175400125
- Part serial: 40674
- Condition: Cracked
- Location: Exhaust
- Part time: 287 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/OG5R2016FA0000046

## Discrepancy

CRACKED MUFFLER ALLOWING EXHAUST FUMES TO ENTER THE CABIN.

---
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.