# SDR 2007UALA04422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2007
- Submitted: October 30, 2007
- Operation: Air carrier
- Aircraft: [N310UA](https://openairdocs.org/aircraft/N310UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 23671
- Aircraft time: 72,420 hours, 9,039 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Bottle
- Condition: Unknown
- Location: Pax
- Stage of operation: IN
- How discovered: O
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA04422

## Discrepancy

PASSENGER O2 FLUCTUATING FROM 1450 TO 1740 PSI.   PERFORMED LEAK CHECKS OF ALL SYSTEMS-GOOD, SERVICED O2 SYS TO PROPER LEVELS AND OBSERVED NO FLUCTUATIONS.  GROUND TEMP 54F.



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