# SDR 2PIA2023012300041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2023
- Submitted: January 23, 2023
- Operation: General aviation
- Aircraft: [N96PB](https://openairdocs.org/aircraft/N96PB), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0111
- Aircraft time: 5,846 hours, 3,539 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Control Unit
- Part number: 52770116
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2PIA2023012300041

## Discrepancy

CABIN WAS NOT PRESSURIZING DURING CLIMB, THE INDICATOR SHOWED CABIN ALTITUDE CLIMBING IN LINE WITH AIRPLANE CLIMB. CABIN ALT WARNING WENT ON AROUND 10,000 FEET.

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