# SDR AMTA200600739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2006
- Submitted: December 28, 2006
- Operation: Air carrier
- Aircraft: [N317TZ](https://openairdocs.org/aircraft/N317TZ), registered now
- Make and model: Boeing 737-83N
- Registry model: [Boeing 737-83N](https://openairdocs.org/model/boeing-737-83n) (OpenAirDocs)
- Aircraft serial: 28246
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Shutoff Valve
- Part number: 32145525
- Part serial: 7162
- Condition: Unserviceable
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200600739

## Discrepancy

CABIN PRESSURIZATION COULD NOT BE MAINTAINED BELOW 10K, GOT CABIN WARNING HORN.  PRSOV VALVE REMOVED AND REPLACED, OK FOR SERVICE.  (K)

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