# SDR 2025FA0000134

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2025
- Submitted: February 26, 2025
- Operation: General aviation
- Aircraft: [N578CA](https://openairdocs.org/aircraft/N578CA), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S10807
- Aircraft time: 3,676 hours
- Engine: Lyc IO360L2A
- Engine time: 9,617 hours
- Propeller: Mcauly 1A170E
- System (JASC): [7800 · Engine Exhaust System](https://openairdocs.org/jasc/7800)
- Part: Muffler
- Part number: 99541009
- Part serial: UNK
- Condition: Cracked
- Location: Engine
- Part time: 3,676 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000134

## Discrepancy

CREW REPORTS EXHAUST SMELL IN CABIN. VISUAL INSPECTION FOUND MUFFLER CRACKED.

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