# SDR 99ZZZX4209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N9627Q
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17265711
- System (JASC): [7820 · Engine Noise Suppressor](https://openairdocs.org/jasc/7820)
- Part: Muffler
- Part number: 175400125
- Condition: Leaking
- Location: Exhasut
- Part time: 800 hours
- Stage of operation: NR
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4209

## Discrepancy

MUFFLERS ONLY LAST 500 TO 800 HOURS BEFORE EXHAUST STARTS LEAKING AT TAILPIPE JUNCTION TO MUFFLER CAN.  TAILPIPE NEEDS TO BE WELDED INSIDE MUFFLER CAN TO CLOSE CAM JUNCTION.

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