# SDR CA110928011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2011
- Submitted: January 23, 2013
- Operation: Air carrier
- Make and model: Cessna 500CESSNA
- Engine: Pwa JT15D1
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Line
- Part number: 99120577
- Condition: Damaged
- Location: O2 System
- Part time: 2,229 hours
- 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/CA110928011

## Discrepancy

(CAN)  OPERATOR REPORTED PERSISTENT SERVICING REQUIREMENT OF THE OXYGEN SYSTEM.  INVESTIGATION FOUND A PINHOLE LEAK IN THE SOLDER JOINT AT THE BULKHEAD ATTACH END OF THE LINE ASSY-PRESSURE BULKHEAD TO OXYGEN GAGE. PN 9912057-7 (ALT S1721-20).

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