# SDR 16082

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2003
- Submitted: October 14, 2003
- Operation: Air carrier
- Aircraft: N120JP
- Make and model: Cessna 550
- Registry model: [Cessna 550](https://openairdocs.org/model/cessna-550) (OpenAirDocs)
- Aircraft serial: 5500468
- Aircraft time: 9,861 hours, 9,930 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/16082

## Discrepancy

THE AIRCRAFT, AFTER DEPARTURE FROM SUS, WAS UNABLE TO PRESSURIZE THE CABIN. THE AIRCRAFT RETURNED TO SUS. OBTAINED A FERRY PERMIT TO RETURN TO AFJ.   THE PROBLEM COULD NOT BE DUPLICATED. THE OUTFLOW VALVE AND SQUAT SWITCH WAS CHECKED.

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