# SDR CWQR20130528034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2013
- Submitted: May 29, 2013
- Operation: General aviation
- Aircraft: N397QS
- Make and model: Cessna 680CE
- Aircraft serial: 6800144
- Aircraft time: 5,336 hours
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Tube
- Part number: 69553009
- Condition: Cracked
- Location: Apu Compartment
- 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/CWQR20130528034

## Discrepancy

DURING A SCHEDULED INSPECTION,  FOUND THIS TUBE ASSEMBLY, CRACKED 50 PERCENT AROUND THE FIREWALL BULKHEAD ATTACH FLANGE.  CRACK WAS FOUND RIGHT ON THE EDGE OF THE WELD BEAD.  THIS WAS REPLACED WITH A NEW TUBE. AN SCR HAS BEEN SUBMITTED UNDER SCR REPORT 659412.

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