# SDR ZDVA424K

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2009
- Submitted: August 28, 2009
- Operation: Air carrier
- Aircraft: [N432MA](https://openairdocs.org/aircraft/N432MA), registered now
- Make and model: Cessna 525A
- Registry model: [Cessna 525A](https://openairdocs.org/model/cessna-525a) (OpenAirDocs)
- Aircraft serial: 525A0300
- Aircraft time: 1,429 hours, 994 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 52771316
- Part serial: 885
- Condition: Malfunctioned
- Location: Cabin Pressure
- Part time: 1,429 hours, 994 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ZDVA424K

## Discrepancy

CREW EXPERIENCED LOSS OF PRESSURIZATION/ERRATIC OPERATION, WAS ABLE TO CONTROL IN MANUAL MODE.

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