# SDR CWQR20130225012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2013
- Submitted: March 1, 2013
- Operation: General aviation
- Aircraft: [N389QS](https://openairdocs.org/aircraft/N389QS), registered now
- Make and model: Cessna 680CE
- Aircraft serial: 6800149
- Aircraft time: 5,077 hours
- System (JASC): [4980 · APU Exhaust System](https://openairdocs.org/jasc/4980)
- Part: Blanket
- Part number: ACM7002
- Condition: Debonded
- Location: Apu 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/CWQR20130225012

## Discrepancy

DURING SCHEDULED INSPECTION, REMOVED HEAT BLANKET ASSY FROM THE APU EXHAUST PIPE.  NOTICED SMALL PIECES OF WHITE HEAT BLANKET MISSING AND WAS WATER STAINED.  THERE IS A REPAIR FOR THE BLANKET BUT WE FOUND THE COMPOSITE INNER SKIN TO BE SOFT IN A 5 TO 6" AREA.

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