# SDR ZKFR20120530001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2012
- Submitted: May 31, 2012
- Operation: Air carrier
- Aircraft: [N261PA](https://openairdocs.org/aircraft/N261PA), registered now
- Make and model: Braero HAWKER1000
- Aircraft serial: 259003
- Aircraft time: 8,748 hours, 5,704 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Check Valve
- Part number: K39068
- Part serial: 172
- Condition: Leaking
- Location: Oxygen System
- 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/ZKFR20120530001

## Discrepancy

OXYGEN SYSTEM LEAKING:  FOUND OXYGEN SYSTEM NON-RETURN VALVE INOP AND ALLOWING OXYGEN TO FLOW BACKWARDS AND LEAKING OUT OF FILLER PORT.  REMOVED AND REPLACED NON-RETUEN VALVE AND LEAK CHECKED GOOD.   THIS NON RETURN VALVE WAS JUST INSTALLED 9 MONTHS AGO FOR THE SAME ISSUE.

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