# SDR CA101006013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2010
- Submitted: January 4, 2011
- Operation: General aviation
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft time: 18,270 hours
- Engine: Lyc O320D2J
- Propeller: Mcauly 1C160DTM
- System (JASC): [7820 · Engine Noise Suppressor](https://openairdocs.org/jasc/7820)
- Part: Muffler
- Part number: S000127B3
- Condition: Unserviceable
- Location: Engine
- Part time: 295 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA101006013

## Discrepancy

DURING ROUTINE 100 HR INSP, THE EXHAUST MUFFLER WAS SUSPECTED UNSERVICEABLE BY AD CF90-03R2, PART I, VISUALLY AND SO IT WAS REMOVED FOR PRESSURE TEST AND FAILED OUT THE SMALL HOLE BY THE EXIT STACK.  THIS AREA IS VERY HARD TO VISUALLY INSPECT.

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