# SDR 2026FA0000350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 2026
- Submitted: May 12, 2026
- Operation: General aviation
- Aircraft: [N525CR](https://openairdocs.org/aircraft/N525CR), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0238
- Aircraft time: 8,541 hours, 6,323 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 991240921
- Part serial: 5012
- Condition: Faulted
- Location: Aft Cabin
- Part time: 526 hours, 340 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A, I
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000350

## Discrepancy

CABIN DEPRESSURIZED AT FL 450. CABIN RATE CLIMBED AT 3000 FPM, CABIN ALT STOPPED CLIMBING AT 15,000'

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