# SDR UPS00233343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2000
- Submitted: July 14, 2000
- Operation: Air carrier
- Aircraft: N937UP
- Make and model: Boeing 727-25C
- Registry model: [Boeing 727-25C](https://openairdocs.org/model/boeing-727-25c) (OpenAirDocs)
- Aircraft serial: 19302
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Valve
- Condition: Inoperative
- Location: Rt A/C Pack
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS00233343

## Discrepancy

INSPECTION TYPE:N/A, AIRCRAFT WILL NOT MAINTAIN PRESSURIZATION.  REMOVED AND REPLACED RIGHT PACK FLOW SENSING VENTURA VALVE IAW DC8 MM 21-51-62, OPS CHECKS GOOD.  (P/N 106892-1-1) (S/N P-501) ON, (S/N P-444) OFF.

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