# SDR 2011FA0000463

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2011
- Submitted: July 15, 2011
- Operation: General aviation
- Aircraft: [N8410U](https://openairdocs.org/aircraft/N8410U), registered now
- Make and model: Cessna 172F
- Registry model: [Cessna 172F](https://openairdocs.org/model/cessna-172f) (OpenAirDocs)
- Aircraft serial: 17252310
- Engine: Lyc O360A4M
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Exhaust Riser
- Part number: 1727603141
- Condition: Damaged
- Location: Engine
- 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/2011FA0000463

## Discrepancy

EXHAUST SYS WAS INSTALLED IN CONJUNCTION WITH 180 HP CONVERSION.  THE NR1 EXHAUST RISER WAS FOUND TO BE COMPLETELY SEVERED APPROX .3750 -.5 INCH BELOW THE WELD LINE AT THE CYLINDER FLANGE.

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