# SDR 98ZZZX4123

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N992CP](https://openairdocs.org/aircraft/N992CP), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280284
- System (JASC): [7820 · Engine Noise Suppressor](https://openairdocs.org/jasc/7820)
- Part: Muffler
- Part number: 05540112PTT
- Condition: Cracked
- Location: Exhaust
- Part time: 207 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/98ZZZX4123

## Discrepancy

WHILE PERFORMING THE AIRCRAFT'S FIRST ANNUAL INSPECTION, THE MUFFLER END FLANGE (ONE OF THEM) WAS FOUND TO HAVE A CRACK ALONG THE WELD EMANATING ABOUT ONE-THIRD OF THE CIRCUMFERENCE OF THE FLANGE.  THE MUFFLER WAS REPLACED WITH A NEW UNIT.  PART ONLY HAD 207 HOURS ON IT.

---
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.