# SDR 2001UALA00039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2001
- Submitted: February 21, 2001
- Operation: Air carrier
- Aircraft: N7458U
- Make and model: Boeing 727222
- Aircraft serial: 21912
- Aircraft time: 60,525 hours, 34,796 cycles
- Engine: Pwa JT8D15
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Failed
- Location: Cabin Pressure
- Component: Outflow Valve, Hamltn, 7110035
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001UALA00039

## Discrepancy

AUTOMATIC CABIN PRESSURIZATION FAILED DURING CLIMB.  *S/D*  THE OUTFLOW VALVE FAILED.  REPLACED OUTFLOW VALVE.

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