# SDR 97ZZZX4512

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N4840T](https://openairdocs.org/aircraft/N4840T), registered now
- Make and model: Cessna TR182
- Registry model: [Cessna TR182](https://openairdocs.org/model/cessna-tr182) (OpenAirDocs)
- Aircraft serial: R18201775
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Heat Exchanger
- Part number: 22540151
- Condition: Cracked
- Location: Cabin Heat
- Part time: 2,223 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/97ZZZX4512

## Discrepancy

INSPECTION OF HEAT EXCHANGER FOUND BACK SIDE OF UNIT SPIRAL FINS CRACKED AND LEAKING.  ALSO, FORWARD FLANGE COUPLED TO NR 1 CYLINDER EXHAUST RISER DETERIORATED.  THESE CRACKS AND LEAKS ARE A HAZARD DUE TO CARBON MONOXIDE IN CABIN HEAT.

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