# SDR 99ZZZX1739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N5589F](https://openairdocs.org/aircraft/N5589F), registered now
- Make and model: Piper PA-28-140
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (OpenAirDocs)
- Aircraft serial: 2824922
- System (JASC): [7820 · Engine Noise Suppressor](https://openairdocs.org/jasc/7820)
- Part: Muffler
- Part number: 9948200
- Condition: Damaged
- Location: Exhaust
- Part time: 2,800 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX1739

## Discrepancy

DURING ANNUAL INSPECTION, MUFFLER REMOVED TO CHECK FOR MUFFLER-TO-HEATER SHROUD INTEGRITY.  NUMEROUS HOLES IN OUTER SKIN NOTED.  REPLACED PIPER MUFFLER WITH KNISLEY MUFFLER, K99482-00.

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