# SDR 2006UALA01693

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2006
- Submitted: August 31, 2006
- Operation: Air carrier
- Aircraft: N521UA
- Make and model: Boeing 757222
- Aircraft serial: 24891
- Aircraft time: 52,597 hours, 19,589 cycles
- Engine: Pwa PW2037
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: O-Ring
- Part number: B14056916
- Condition: Unserviceable
- Location: Bottle Valve
- Component: Bottle Valve
- Component part number: D31042205U1
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006UALA01693

## Discrepancy

LOW BOTTLE PRESSURE.  THE FAILURE IS ATTRIBUTED TO A DAMAGED FILL VALVE O-RING.  THE O-RING WAS FOUND PINCHED AND HAD A NOTCH OUT OF IT.  REPLACED O-RING.

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