# SDR 20000522SH016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2000
- Submitted: May 22, 2000
- Operation: General aviation
- Aircraft: [N732JF](https://openairdocs.org/aircraft/N732JF), registered now
- Make and model: Cessna T210L
- Registry model: [Cessna T210L](https://openairdocs.org/model/cessna-t210l) (OpenAirDocs)
- Aircraft serial: 21061543
- Engine: Cont TSIO520H
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Riser
- Part number: K1250860100
- Part serial: 26177
- Condition: Cracked
- Location: Nr 4 Cylinder
- Part time: 1,300 hours
- Component: Exhaust
- 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/20000522SH016

## Discrepancy

MAINTENANCE LOOKED AT ACFT BEFORE FLIGHT.  COWLING WAS REMOVED AND EXHAUST SOOT WAS SEEN AROUND LOWER SIDE OF NR 4 CYLINDER.  FURTHER INVESTIGATION REVEALED A CRACK AROUND THE EXHAUST RISER THAT WAS ABOUT 270 DEGREES AROUND THE PIPE.  HEAT EXCHANGER PORTION OF THE EXHAUST HAD BEEN REPLACED DURING THE PREVIOUS 100-HR INSP ACCOMPLISHED 30 HRS PREVIOUSLY.  THERE WAS NO PROBLEM IN ALIGNMENT DURING RE-ASSY OF EXHAUST SYS.  SUBMITTER STATED THIS IS THE FIRST CRACKED RISER WITH THIS STC'D SYSTEM.  OTHER AREAS THAT CRACKED WERE RE-DESIGNED BY MFG AND HAVE NOT HAD  ANY OTHER PROBLEMS.  (X)

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