# SDR UALA2011121906955

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2011
- Submitted: December 19, 2011
- Operation: Air carrier
- Aircraft: N587UA
- Make and model: Boeing 757222
- Aircraft serial: 26713
- Aircraft time: 60,557 hours, 21,457 cycles
- Engine: Pwa PW2037
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Bottle
- Condition: Low Pressure
- Location: Cabin
- 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/UALA2011121906955

## Discrepancy

LG O2 BOTTLE AT SEAT 20C IS LOW PRESSURE.  REPLACED 11CU BOTTLE.  MASK TO HIGH SIDE.

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