# SDR UPS99630005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N319UP](https://openairdocs.org/aircraft/N319UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27758
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Inoperative
- Location: Cabin
- Stage of operation: DE
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99630005

## Discrepancy

INSPECTION TYPE:ETOP PILOT REPORT PRESSURIZATION AUTO 1 DID NOT INITIATE AT FL 370 DESCENDING INTO ONT.  MANUAL PRESSURIZATION INITIATED AT FL 200.  PRESSURIZATION AUTO 2 ON DEFFERAL.  REMOVED AND REPLACED OUTFLOW VALVE, VALVE CHECKS GOOD.

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