# SDR CWQR20120318023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2013
- Submitted: March 20, 2013
- Operation: General aviation
- Aircraft: N364QS
- Make and model: Cessna 680CE
- Aircraft serial: 6800062
- Aircraft time: 6,141 hours
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Heat Exchanger
- Part number: 99145222
- Part serial: S4883T0152
- Condition: Cracked
- Location: Bleed Air
- 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/CWQR20120318023

## Discrepancy

DURING A SCHEDULED INSPECTION,  NOTICED HEAT EXCHANGER SIDE PLATE HAD FOUR CRACKS ABOUT .30 INCH LONG.   A NEW HEAT EXCHANGER WAS INSTALLED.  LEAK CHECK OF DEFECTIVE UNIT AND FOUND CRACKS EXTENDED INTO COOLING FIN AREA.

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